- Oct 04, 2016
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull EFI updates from Ingo Molnar: "Main changes in this cycle were: - Refactor the EFI memory map code into architecture neutral files and allow drivers to permanently reserve EFI boot services regions on x86, as well as ARM/arm64. (Matt Fleming) - Add ARM support for the EFI ESRT driver. (Ard Biesheuvel) - Make the EFI runtime services and efivar API interruptible by swapping spinlocks for semaphores. (Sylvain Chouleur) - Provide the EFI identity mapping for kexec which allows kexec to work on SGI/UV platforms with requiring the "noefi" kernel command line parameter. (Alex Thorlton) - Add debugfs node to dump EFI page tables on arm64. (Ard Biesheuvel) - Merge the EFI test driver being carried out of tree until now in the FWTS project. (Ivan Hu) - Expand the list of flags for classifying EFI regions as "RAM" on arm64 so we align with the UEFI spec. (Ard Biesheuvel) - Optimise out the EFI mixed mode if it's unsupported (CONFIG_X86_32) or disabled (CONFIG_EFI_MIXED=n) and switch the early EFI boot services function table for direct calls, alleviating us from having to maintain the custom function table. (Lukas Wunner) - Miscellaneous cleanups and fixes" * 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits) x86/efi: Round EFI memmap reservations to EFI_PAGE_SIZE x86/efi: Allow invocation of arbitrary boot services x86/efi: Optimize away setup_gop32/64 if unused x86/efi: Use kmalloc_array() in efi_call_phys_prolog() efi/arm64: Treat regions with WT/WC set but WB cleared as memory efi: Add efi_test driver for exporting UEFI runtime service interfaces x86/efi: Defer efi_esrt_init until after memblock_x86_fill efi/arm64: Add debugfs node to dump UEFI runtime page tables x86/efi: Remove unused find_bits() function fs/efivarfs: Fix double kfree() in error path x86/efi: Map in physical addresses in efi_map_region_fixed lib/ucs2_string: Speed up ucs2_utf8size() firmware-gsmi: Delete an unnecessary check before the function call "dma_pool_destroy" x86/efi: Initialize status to ensure garbage is not returned on small size efi: Replace runtime services spinlock with semaphore efi: Don't use spinlocks for efi vars efi: Use a file local lock for efivars efi/arm*: esrt: Add missing call to efi_esrt_init() efi/esrt: Use memremap not ioremap to access ESRT table in memory x86/efi-bgrt: Use efi_mem_reserve() to avoid copying image data ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull core SMP updates from Ingo Molnar: "Two main change is generic vCPU pinning and physical CPU SMP-call support, for Xen to be able to perform certain calls on specific physical CPUs - by Juergen Gross" * 'core-smp-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: smp: Allocate smp_call_on_cpu() workqueue on stack too hwmon: Use smp_call_on_cpu() for dell-smm i8k dcdbas: Make use of smp_call_on_cpu() xen: Add xen_pin_vcpu() to support calling functions on a dedicated pCPU smp: Add function to execute a function synchronously on a CPU virt, sched: Add generic vCPU pinning support xen: Sync xen header
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull RCU updates from Ingo Molnar: "The main changes in this cycle were: - Expedited grace-period changes, most notably avoiding having user threads drive expedited grace periods, using a workqueue instead. - Miscellaneous fixes, including a performance fix for lists that was sent with the lists modifications. - CPU hotplug updates, most notably providing exact CPU-online tracking for RCU. This will in turn allow removal of the checks supporting RCU's prior heuristic that was based on the assumption that CPUs would take no longer than one jiffy to come online. - Torture-test updates. - Documentation updates" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits) list: Expand list_first_entry_or_null() torture: TOROUT_STRING(): Insert a space between flag and message rcuperf: Consistently insert space between flag and message rcutorture: Print out barrier error as document says torture: Add task state to writer-task stall printk()s torture: Convert torture_shutdown() to hrtimer rcutorture: Convert to hotplug state machine cpu/hotplug: Get rid of CPU_STARTING reference rcu: Provide exact CPU-online tracking for RCU rcu: Avoid redundant quiescent-state chasing rcu: Don't use modular infrastructure in non-modular code sched: Make wake_up_nohz_cpu() handle CPUs going offline rcu: Use rcu_gp_kthread_wake() to wake up grace period kthreads rcu: Use RCU's online-CPU state for expedited IPI retry rcu: Exclude RCU-offline CPUs from expedited grace periods rcu: Make expedited RCU CPU stall warnings respond to controls rcu: Stop disabling expedited RCU CPU stall warnings rcu: Drive expedited grace periods from workqueue rcu: Consolidate expedited grace period machinery documentation: Record reason for rcu_head two-byte alignment ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull PNP update from Rafael Wysocki: "This makes more PNP core code explicitly non-modular (Paul Gortmaker)" * tag 'pnp-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PNP: isapnp: make core more explicitly non-modular
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI updates from Rafael Wysocki: "First off, the ACPICA code in the kernel is updated to upstream revision 20160831 that brings in a few bug fixes and cleanups. In particular, it is possible to mask GPEs now (and the sysfs interface for GPE control is fixed on top of that), problems related to the table loading mechanism are fixed and all code related to FADT version 2 (which has never been part of the ACPI specification) is dropped. On the new features front, there is a new watchdog driver based on the ACPI WDAT (ACPI Watchdog Action Table), needed on some platforms to replace the iTCO watchdog that doesn't work there, and some UART devices get new definitions of built-in properties (to be accessed via the generic device properties API). Also, included is a fix for an ACPI-related PCI resorces allocation issue and a few problems in the EC driver and in the button and battery drivers are fixed. In addition to that, the ACPI CPPC library is updated to make batching of requests sent over the PCC channel possible (which reduces the PCC usage overhead substantially in some cases) and to support functional fixed hardware (FFH) type of CPPC registers access (which will allow CPPC to be used on x86 too in the future). As usual, there are some assorted fixes and cleanups too. Specifics: - Update of the ACPICA code in the kernel to upstream revision 20160831 with the following major changes: * New mechanism for GPE masking. * Fixes for issues related to the LoadTable operator and table loading. * Fixes for issues related to so-called module-level code (MLC), that is AML that doesn't belong to any methods. * Change of the return value of the _OSI method to reflect the Windows behavior. * GAS (Generic Address Structure) support fix related to 32-bit FADT addresses. * Elimination of unnecessary FADT version 2 support. * ACPI tools fixes and cleanups. From Bob Moore, Lv Zheng, and Jung-uk Kim. - ACPI sysfs interface updates to fix GPE handling (on top of the new GPE masking mechanism in ACPICA) and issues related to table loading (Lv Zheng). - New watchdog driver based on the ACPI WDAT (ACPI Watchdog Action Table), needed on some platforms to replace the iTCO watchdog that doesn't work there and related updates of the intel_pmc_ipc, i2c/i801 and MFD/lcp_ich drivers (Mika Westerberg). - Driver core fix to prevent it from leaking secondary fwnode objects during device removal (Lukas Wunner). - New definitions of built-in properties for UART in ACPI-based x86 SoC drivers and a 8250_dw driver quirk for the APM X-Gene SoC (Heikki Krogerus). - New device ID for the Vulcan SPI controller and constification of local strucures in the AMD SoC (APD) ACPI driver (Kamlakant Patel, Julia Lawall). - Fix for a bug causing the allocation of PCI resorces to fail if ACPI-enumerated child platform devices are registered below the PCI devices in question (Mika Westerberg). - Change of the default polarity for PCI legacy IRQs to high on systems booting wth ACPI on platforms with a GIC interrupt controller model fixing the discrepancy between the specification and HW behavior (Lorenzo Pieralisi). - Fixes for the handling of system suspend/resume in the ACPI EC driver and update of that driver to make it cope with the cases when the EC device defined in the ECDT has to be used throughout the entire system life cycle (Lv Zheng). - Update of the ACPI CPPC library to allow it to batch requests sent over the PCC channel (to reduce overhead), to support the fixed functional hardware (FFH) CPPC registers access type, to notify the mailbox framework about TX completions when the interrupt flag is set for the PCC mailbox, and to support HW-Reduced Communication Subspace type 2 (Ashwin Chaugule, Prashanth Prakash, Srinivas Pandruvada, Hoan Tran). - ACPI button driver fix and documentation update related to the handling of laptop lids (Lv Zheng). - ACPI battery driver initialization fix (Carlos Garnacho). - ACPI GPIO enumeration documentation update (Mika Westerberg). - Assorted updates of the core ACPI bus type code (Lukas Wunner, Lv Zheng). - Assorted cleanups of the ACPI table parsing code and the x86-specific ACPI code (Al Stone). - Fixes for assorted ACPI-related issues found in linux-next (Wei Yongjun)" * tag 'acpi-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (98 commits) ACPI / documentation: Use recommended name in GPIO property names watchdog: wdat_wdt: Fix warning for using 0 as NULL watchdog: wdat_wdt: fix return value check in wdat_wdt_probe() platform/x86: intel_pmc_ipc: Do not create iTCO watchdog when WDAT table exists i2c: i801: Do not create iTCO watchdog when WDAT table exists mfd: lpc_ich: Do not create iTCO watchdog when WDAT table exists ACPI / bus: Adjust ACPI subsystem initialization for new table loading mode ACPICA: Parser: Fix a regression in LoadTable support ACPICA: Tables: Fix "UNLOAD" code path lock issues ACPI / watchdog: Add support for WDAT hardware watchdog ACPI / platform: Pay attention to parent device's resources PCI: Add pci_find_resource() ACPI / CPPC: Support PCC with interrupt flag ACPI / sysfs: Update sysfs signature handling code ACPI / sysfs: Fix an issue for LoadTable opcode ACPICA: Tables: Fix a regression in acpi_tb_find_table() ACPI / tables: Remove duplicated include from tables.c ACPI / APD: constify local structures x86: ACPI: make variable names clearer in acpi_parse_madt_lapic_entries() x86: ACPI: remove extraneous white space after semicolon ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull power management updates from Rafael Wysocki: "Traditionally, cpufreq is the area with the greatest number of changes, but there are fewer of them than last time. There also is some activity in the generic power domains and the devfreq frameworks, a couple of system suspend and hibernation fixes and some assorted changes in other places. One new feature is the cpufreq change to allow the scheduler to pass hints to the governors' utilization update callbacks and some code rework based on that. Another one is the support for domain removal in the generic power domains framework. Also it is now possible to use hibernation with PAGE_POISONING_ZERO enabled and devfreq supports the RockChip DFI controller and the rk3399 DMC. The rest of the changes is mostly fixes and cleanups in a number of places. Specifics: - Add a mechanism for passing hints from the scheduler to cpufreq governors via their utilization update callbacks and use it to introduce "IOwait boosting" into the schedutil governor and intel_pstate that will make them boost performance if the enqueued task was previously waiting on I/O (Rafael Wysocki). - Fix a schedutil governor problem that causes it to overestimate utilization if SMT is in use (Steve Muckle). - Update defconfigs trying to use the schedutil governor as a module which is not possible any more (Javier Martinez Canillas). - Update the intel_pstate's pstate_sample tracepoint to take "IOwait boosting" into account (Srinivas Pandruvada). - Fix a problem in the cpufreq core causing it to mishandle the initialization of CPUs registered after the cpufreq driver (Viresh Kumar, Rafael Wysocki). - Make the cpufreq-dt driver support per-policy governor tunables, clean it up and update its Kconfig description (Viresh Kumar). - Add support for more ARM platforms to the cpufreq-dt driver (Chanwoo Choi, Dave Gerlach, Geert Uytterhoeven). - Make the cpufreq CPPC driver report frequencies in KHz to avoid user space compatiblility issues (Al Stone, Hoan Tran). - Clean up a few cpufreq drivers (st, kirkwood, SCPI) a bit (Colin Ian King, Markus Elfring). - Constify some local structures in the intel_pstate driver (Julia Lawall). - Add a Documentation/cpu-freq/ entry to MAINTAINERS (Jean Delvare). - Add support for PM domain removal to the generic power domains (genpd) framework, add new DT helper functions to it and make it always enable debugfs support if available (Jon Hunter, Tomeu Vizoso). - Clean up the generic power domains (genpd) framework and make it avoid measuring power-on and power-off latencies during system-wide PM transitions (Ulf Hansson). - Add support for the RockChip DFI controller and the rk3399 DMC to the devfreq framework (Lin Huang, Axel Lin, Arnd Bergmann). - Add COMPILE_TEST to the devfreq framework (Krzysztof Kozlowski, Stephen Rothwell). - Fix a minor issue in the exynos-ppmu devfreq driver and fix up devfreq Kconfig indentation style (Wei Yongjun, Jisheng Zhang). - Fix the system suspend interface to make suspend-to-idle work if platform suspend operations have not been registered (Sudeep Holla). - Make it possible to use hibernation with PAGE_POISONING_ZERO enabled (Anisse Astier). - Increas the default timeout of the system suspend/resume watchdog and make it depend on EXPERT (Chen Yu). - Make the operating performance points (OPP) framework avoid using OPPs that aren't supported by the platform and fix a build warning in it (Dave Gerlach, Arnd Bergmann). - Fix the ARM cpuidle driver's return value (Christophe Jaillet). - Make the SmartReflex AVS (Adaptive Voltage Scaling) driver use more common logging style (Joe Perches)" * tag 'pm-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (58 commits) PM / OPP: Don't support OPP if it provides supported-hw but platform does not cpufreq: st: add missing \n to end of dev_err message cpufreq: kirkwood: add missing \n to end of dev_err messages PM / Domains: Rename pm_genpd_sync_poweron|poweroff() PM / Domains: Don't measure latency of ->power_on|off() during system PM PM / Domains: Remove redundant system PM callbacks PM / Domains: Simplify detaching a device from its genpd PM / devfreq: rk3399_dmc: Remove explictly regulator_put call in .remove PM / devfreq: rockchip: add PM_DEVFREQ_EVENT dependency PM / OPP: avoid maybe-uninitialized warning PM / Domains: Allow holes in genpd_data.domains array cpufreq: CPPC: Avoid overflow when calculating desired_perf cpufreq: ti: Use generic platdev driver cpufreq: intel_pstate: Add io_boost trace partial revert of "PM / devfreq: Add COMPILE_TEST for build coverage" cpufreq: intel_pstate: Use IOWAIT flag in Atom algorithm cpufreq: schedutil: Add iowait boosting cpufreq / sched: SCHED_CPUFREQ_IOWAIT flag to indicate iowait condition PM / Domains: Add support for removing nested PM domains by provider PM / Domains: Add support for removing PM domains ...
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- Oct 03, 2016
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 updates from Will Deacon: "It's a bit all over the place this time with no "killer feature" to speak of. Support for mismatched cache line sizes should help people seeing whacky JIT failures on some SoCs, and the big.LITTLE perf updates have been a long time coming, but a lot of the changes here are cleanups. We stray outside arch/arm64 in a few areas: the arch/arm/ arch_timer workaround is acked by Russell, the DT/OF bits are acked by Rob, the arch_timer clocksource changes acked by Marc, CPU hotplug by tglx and jump_label by Peter (all CC'd). Summary: - Support for execute-only page permissions - Support for hibernate and DEBUG_PAGEALLOC - Support for heterogeneous systems with mismatches cache line sizes - Errata workarounds (A53 843419 update and QorIQ A-008585 timer bug) - arm64 PMU perf updates, including cpumasks for heterogeneous systems - Set UTS_MACHINE for building rpm packages - Yet another head.S tidy-up - Some cleanups and refactoring, particularly in the NUMA code - Lots of random, non-critical fixes across the board" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (100 commits) arm64: tlbflush.h: add __tlbi() macro arm64: Kconfig: remove SMP dependence for NUMA arm64: Kconfig: select OF/ACPI_NUMA under NUMA config arm64: fix dump_backtrace/unwind_frame with NULL tsk arm/arm64: arch_timer: Use archdata to indicate vdso suitability arm64: arch_timer: Work around QorIQ Erratum A-008585 arm64: arch_timer: Add device tree binding for A-008585 erratum arm64: Correctly bounds check virt_addr_valid arm64: migrate exception table users off module.h and onto extable.h arm64: pmu: Hoist pmu platform device name arm64: pmu: Probe default hw/cache counters arm64: pmu: add fallback probe table MAINTAINERS: Update ARM PMU PROFILING AND DEBUGGING entry arm64: Improve kprobes test for atomic sequence arm64/kvm: use alternative auto-nop arm64: use alternative auto-nop arm64: alternative: add auto-nop infrastructure arm64: lse: convert lse alternatives NOP padding to use __nops arm64: barriers: introduce nops and __nops macros for NOP sequences arm64: sysreg: replace open-coded mrs_s/msr_s with {read,write}_sysreg_s ...
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Linus Torvalds authored
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git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: "Three relatively small fixes for ARM: - Roger noticed that dma_max_pfn() was calculating the upper limit wrongly, by adding the PFN offset of memory twice. - A fix from Robin to correct parsing of MPIDR values when the address size is larger than one BE32 unit. - A fix from Srinivas to ensure that we do not rely on the boot loader (or previous Linux kernel) setting the translation table base register a certain way in the decompressor, which can lead to crashes" * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8618/1: decompressor: reset ttbcr fields to use TTBR0 on ARMv7 ARM: 8617/1: dma: fix dma_max_pfn() ARM: 8616/1: dt: Respect property size when parsing CPUs
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Srinivas Ramana authored
If the bootloader uses the long descriptor format and jumps to kernel decompressor code, TTBCR may not be in a right state. Before enabling the MMU, it is required to clear the TTBCR.PD0 field to use TTBR0 for translation table walks. The commit dbece458 ("ARM: 7501/1: decompressor: reset ttbcr for VMSA ARMv7 cores") does the reset of TTBCR.N, but doesn't consider all the bits for the size of TTBCR.N. Clear TTBCR.PD0 field and reset all the three bits of TTBCR.N to indicate the use of TTBR0 and the correct base address width. Fixes: dbece458 ("ARM: 7501/1: decompressor: reset ttbcr for VMSA ARMv7 cores") Acked-by:
Robin Murphy <robin.murphy@arm.com> Signed-off-by:
Srinivas Ramana <sramana@codeaurora.org> Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Thomas Gleixner: "The last regression fixes for 4.8 final: - Two patches addressing the fallout of the CR4 optimizations which caused CR4-less machines to fail. - Fix the VDSO build on big endian machines - Take care of FPU initialization if no CPUID is available otherwise task struct size ends up being zero - Fix up context tracking in case load_gs_index fails" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/entry/64: Fix context tracking state warning when load_gs_index fails x86/boot: Initialize FPU and X86_FEATURE_ALWAYS even if we don't have CPUID x86/vdso: Fix building on big endian host x86/boot: Fix another __read_cr4() case on 486 x86/init: Fix cr4_init_shadow() on CR4-less machines
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git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds authored
Pull MIPS fixes from Ralf Baechle: "Another round of fixes: - CM: Fix mips_cm_max_vp_width for non-MT kernels on MT systems - CPS: Avoid BUG() when offlining pre-r6 CPUs - DEC: Avoid gas warnings due to suspicious instruction scheduling by manually expanding assembler macros. - FTLB: Fix configuration by moving confiuguratoin after probing - FTLB: clear execution hazard after changing FTLB enable - Highmem: Fix detection of unsupported highmem with cache aliases - I6400: Don't touch FTLBP chicken bits - microMIPS: Fix BUILD_ROLLBACK_PROLOGUE - Malta: Fix IOCU disable switch read for MIPS64 - Octeon: Fix probing of devices attached to GPIO lines - uprobes: Misc small fixes" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: CM: Fix mips_cm_max_vp_width for non-MT kernels on MT systems MIPS: Fix detection of unsupported highmem with cache aliases MIPS: Malta: Fix IOCU disable switch read for MIPS64 MIPS: Fix BUILD_ROLLBACK_PROLOGUE for microMIPS MIPS: clear execution hazard after changing FTLB enable MIPS: Configure FTLB after probing TLB sizes from config4 MIPS: Stop setting I6400 FTLBP MIPS: DEC: Avoid la pseudo-instruction in delay slots MIPS: Octeon: mark GPIO controller node not populated after IRQ init. MIPS: uprobes: fix use of uninitialised variable MIPS: uprobes: remove incorrect set_orig_insn MIPS: fix uretprobe implementation MIPS: smp-cps: Avoid BUG() when offlining pre-r6 CPUs
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds authored
Pull sparc fixes from David Miller: 1) Fix section mismatches in some builds, from Paul Gortmaker. 2) Need to count huge zero page mappings when doing TSB sizing, from Mike Kravetz. 3) Fix handing of cpu_possible_mask when nr_cpus module option is specified, from Atish Patra. 4) Don't allocate irq stacks until nr_irqs has been processed, also from Atish Patra. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Fix non-SMP build. sparc64: Fix irq stack bootmem allocation. sparc64: Fix cpu_possible_mask if nr_cpus is set sparc64 mm: Fix more TSB sizing issues sparc64: fix section mismatch in find_numa_latencies_for_group
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) Fix wrong TCP checksums on MTU probing when checksum offloading is disabled, from Douglas Caetano dos Santos. 2) Fix qdisc backlog updates in qfq and sfb schedulers, from Cong Wang. 3) Route lookup flow key protocol value is wrong in ip6gre_xmit_other(), fix from Lance Richardson. 4) Scheduling while atomic in multicast routing code of ipv4 and ipv6, fix from Nikolay Aleksandrov. 5) Fix packet alignment in fec driver, from Eric Nelson. 6) Fix perf regression in sctp due to struct layout and cache misses, from Xin Long. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: sctp: fix the issue sctp_diag uses lock_sock in rcu_read_lock sctp: change to check peer prsctp_capable when using prsctp polices sctp: remove prsctp_param from sctp_chunk sctp: move sent_count to the memory hole in sctp_chunk tg3: Avoid NULL pointer dereference in tg3_io_error_detected() act_ife: Fix false encoding act_ife: Fix external mac header on encode VSOCK: Don't dec ack backlog twice for rejected connections Revert "net: ethernet: bcmgenet: use phydev from struct net_device" net: fec: align IP header in hardware net: fec: remove QUIRK_HAS_RACC from i.mx27 net: fec: remove QUIRK_HAS_RACC from i.mx25 ipmr, ip6mr: fix scheduling while atomic and a deadlock with ipmr_get_route ip6_gre: fix flowi6_proto value in ip6gre_xmit_other() tcp: fix a compile error in DBGUNDO() tcp: fix wrong checksum calculation on MTU probing sch_sfb: keep backlog updated with qlen sch_qfq: keep backlog updated with qlen can: dev: fix deadlock reported after bus-off
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- Oct 02, 2016
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Rafael J. Wysocki authored
* pm-devfreq: PM / devfreq: rk3399_dmc: Remove explictly regulator_put call in .remove PM / devfreq: rockchip: add PM_DEVFREQ_EVENT dependency partial revert of "PM / devfreq: Add COMPILE_TEST for build coverage" PM / devfreq: rockchip: add devfreq driver for rk3399 dmc Documentation: bindings: add dt documentation for rk3399 dmc PM / devfreq: event: support rockchip dfi controller Documentation: bindings: add dt documentation for dfi controller PM / devfreq: event: remove duplicate devfreq_event_get_drvdata() PM / devfreq: fix Kconfig indent style PM / devfreq: Add COMPILE_TEST for build coverage PM / devfreq: exynos-ppmu: remove unneeded of_node_put() * pm-sleep: PM / Hibernate: allow hibernation with PAGE_POISONING_ZERO PM / sleep: enable suspend-to-idle even without registered suspend_ops PM / sleep: Increase default DPM watchdog timeout to 120
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Rafael J. Wysocki authored
* pm-cpuidle: ARM: cpuidle: Fix error return code * pm-opp: PM / OPP: Don't support OPP if it provides supported-hw but platform does not PM / OPP: avoid maybe-uninitialized warning * pm-avs: PM / AVS: SmartReflex: Neaten logging
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Rafael J. Wysocki authored
* pm-cpufreq: (24 commits) cpufreq: st: add missing \n to end of dev_err message cpufreq: kirkwood: add missing \n to end of dev_err messages cpufreq: CPPC: Avoid overflow when calculating desired_perf cpufreq: ti: Use generic platdev driver cpufreq: intel_pstate: Add io_boost trace cpufreq: intel_pstate: Use IOWAIT flag in Atom algorithm cpufreq: schedutil: Add iowait boosting cpufreq / sched: SCHED_CPUFREQ_IOWAIT flag to indicate iowait condition cpufreq: CPPC: Force reporting values in KHz to fix user space interface cpufreq: create link to policy only for registered CPUs intel_pstate: constify local structures cpufreq: dt: Support governor tunables per policy cpufreq: dt: Update kconfig description cpufreq: dt: Remove unused code MAINTAINERS: Add Documentation/cpu-freq/ cpufreq: dt: Add support for r8a7792 cpufreq / sched: ignore SMT when determining max cpu capacity cpufreq: Drop unnecessary check from cpufreq_policy_alloc() ARM: multi_v7_defconfig: Don't attempt to enable schedutil governor as module ARM: exynos_defconfig: Don't attempt to enable schedutil governor as module ...
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Rafael J. Wysocki authored
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Rafael J. Wysocki authored
* pm-domains: PM / Domains: Rename pm_genpd_sync_poweron|poweroff() PM / Domains: Don't measure latency of ->power_on|off() during system PM PM / Domains: Remove redundant system PM callbacks PM / Domains: Simplify detaching a device from its genpd PM / Domains: Allow holes in genpd_data.domains array PM / Domains: Add support for removing nested PM domains by provider PM / Domains: Add support for removing PM domains PM / Domains: Store the provider in the PM domain structure PM / Domains: Prepare for adding support to remove PM domains PM / Domains: Verify the PM domain is present when adding a provider PM / Domains: Don't expose xlate and provider helper functions PM / Domains: Don't expose generic_pm_domain structure to clients staging: board: Remove calls to of_genpd_get_from_provider() ARM: EXYNOS: Remove calls to of_genpd_get_from_provider() PM / Domains: Add new helper functions for device-tree PM / Domains: Always enable debugfs support if available
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Paul Burton authored
When discovering the number of VPEs per core, smp_num_siblings will be incorrect for kernels built without support for the MIPS MultiThreading (MT) ASE running on systems which implement said ASE. This leads to accesses to VPEs in secondary cores being performed incorrectly since mips_cm_vp_id calculates the wrong ID to write to the local "other" registers. Fix this by examining the number of VPEs in the core as reported by the CM. This patch presumes that the number of VPEs will be the same in each core of the system. As this path only applies to systems with CM version 2.5 or lower, and this property is true of all such known systems, this is likely to be fine but is described in a comment for good measure. Signed-off-by:
Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14338/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Rafael J. Wysocki authored
* acpi-button: ACPI / button: Add document for ACPI control method lid device restrictions ACPI / button: Fix an issue in button.lid_init_state=ignore mode * acpi-battery: ACPI / battery: Add sysfs representation after checking _BST * acpi-doc: ACPI / documentation: Use recommended name in GPIO property names
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Rafael J. Wysocki authored
* acpi-wdat: watchdog: wdat_wdt: Fix warning for using 0 as NULL watchdog: wdat_wdt: fix return value check in wdat_wdt_probe() platform/x86: intel_pmc_ipc: Do not create iTCO watchdog when WDAT table exists i2c: i801: Do not create iTCO watchdog when WDAT table exists mfd: lpc_ich: Do not create iTCO watchdog when WDAT table exists ACPI / watchdog: Add support for WDAT hardware watchdog * acpi-ec: ACPI / EC: Fix issues related to boot_ec ACPI / EC: Fix a gap that ECDT EC cannot handle EC events ACPI / EC: Fix a memory leakage issue in acpi_ec_add() ACPI / EC: Cleanup first_ec/boot_ec code ACPI / EC: Enable event freeze mode to improve event handling for suspend process ACPI / EC: Add PM operations to improve event handling for suspend process ACPI / EC: Add PM operations to improve event handling for resume process ACPI / EC: Fix an issue that SCI_EVT cannot be detected after event is enabled ACPI / EC: Add EC_FLAGS_QUERY_ENABLED to reveal a hidden logic ACPI / EC: Add PM operations for suspend/resume noirq stage
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Rafael J. Wysocki authored
* acpi-x86: x86: ACPI: make variable names clearer in acpi_parse_madt_lapic_entries() x86: ACPI: remove extraneous white space after semicolon * acpi-cppc: ACPI / CPPC: Support PCC with interrupt flag ACPI / CPPC: Add prefix cppc to cpudata structure name ACPI / CPPC: Add support for functional fixed hardware address ACPI / CPPC: Don't return on CPPC probe failure ACPI / CPPC: Allow build with ACPI_CPU_FREQ_PSS config ACPI / CPPC: check for error bit in PCC status field ACPI / CPPC: move all PCC related information into pcc_data ACPI / CPPC: add sysfs support to compute delivered performance ACPI / CPPC: set a non-zero value for transition_latency ACPI / CPPC: support for batching CPPC requests ACPI / CPPC: acquire pcc_lock only while accessing PCC subspace ACPI / CPPC: restructure read/writes for efficient sys mapped reg ops mailbox: pcc: Support HW-Reduced Communication Subspace type 2 * acpi-soc: ACPI / APD: constify local structures ACPI / APD: Add device HID for Vulcan SPI controller
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Rafael J. Wysocki authored
* acpi-bus: ACPI / bus: Adjust ACPI subsystem initialization for new table loading mode ACPI / bus: Make acpi_get_first_physical_node() public
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Rafael J. Wysocki authored
* acpi-sysfs: ACPI / sysfs: Update sysfs signature handling code ACPI / sysfs: Fix an issue for LoadTable opcode ACPI / sysfs: Use new GPE masking mechanism in GPE interface * acpi-pci: ACPI / platform: Pay attention to parent device's resources PCI: Add pci_find_resource() ACPI / PCI: fix GIC irq model default PCI IRQ polarity * acpi-tables: ACPI / tables: Remove duplicated include from tables.c ACPI / tables: do not report the number of entries ignored by acpi_parse_entries() ACPI / tables: fix acpi_parse_entries_array() so it traverses all subtables ACPI / tables: fix incorrect counts returned by acpi_parse_entries_array()
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Rafael J. Wysocki authored
* acpica: (45 commits) ACPICA: Parser: Fix a regression in LoadTable support ACPICA: Tables: Fix "UNLOAD" code path lock issues ACPICA: Tables: Fix a regression in acpi_tb_find_table() ACPICA: Update version to 20160831 ACPICA: Tables: Tune table mutex to be a leaf lock ACPICA: Dispatcher: Fix a mutex issue for method auto serialization ACPICA: Namespace: Fix dynamic table loading issues ACPICA: Namespace: Add acpi_ns_get_node_unlocked() ACPICA: Interpreter: Fix MLC issues by switching to new term_list grammar for table loading ACPICA: Update return value for intenal _OSI method ACPICA: Tables: Override all 64-bit GAS fields when acpi_gbl_use32_bit_fadt_addresses is TRUE ACPICA: Tables: Add new table events indicating table installation/uninstallation ACPICA: Tables: Remove wrong table event macros ACPICA: Tables: Remove acpi_tb_install_fixed_table() ACPICA: Add a couple of casts to uthex.c ACPICA: Cleanup for all string-to-integer conversions ACPICA: Debugger: Add subcommand for predefined name execution ACPICA: Update version to 20160729 ACPICA: OSL: Fix a regression that old GCC requires a workaround for strchr() ACPICA: OSL: Cleanup the inclusion order of the compiler-specific headers ...
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Rafael J. Wysocki authored
* device-properties: serial: 8250_dw: Add quirk for APM X-Gene SoC ACPI / LPSS: Provide build-in properties of the UART ACPI / APD: Provide build-in properties of the UART driver core: Don't leak secondary fwnode on device removal
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- Oct 01, 2016
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fix from James Bottomley: "One final fix before 4.8. There was a memory leak triggered by turning scsi mq off due to the fact that we assume on host release that the already running hosts weren't mq based because that's the state of the global flag (even though they were). Fix it by tracking this on a per host host basis" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: Avoid that toggling use_blk_mq triggers a memory leak
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull input fix from Dmitry Torokhov: "One small change to make joydev (which is used by older games) to bind to devices that export Z axis but not X or Y (such as TRC rudder)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: joydev - recognize devices with Z axis as joysticks
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Linus Torvalds authored
Merge more fixes from Andrew Morton: "Three fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: include/linux/property.h: fix typo/compile error ocfs2: fix deadlock on mmapped page in ocfs2_write_begin_nolock() mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page()
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John Youn authored
This fixes commit d76eebfa ("include/linux/property.h: fix build issues with gcc-4.4.4"). With that commit we get the following compile error when using the PROPERTY_ENTRY_INTEGER_ARRAY macro. include/linux/property.h:201:39: error: `u32_data' undeclared (first use in this function) PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u32, _val_) ^ include/linux/property.h:193:17: note: in definition of macro `PROPERTY_ENTRY_INTEGER_ARRAY' { .pointer = { _type_##_data = _val_ } }, \ ^ This needs a '.' to reference the union member. It seems this was just overlooked here since it is done correctly in similar constructs in other parts of the original commit. This fix is in preparation of upcoming commits that will use this macro. Fixes: commit d76eebfa ("include/linux/property.h: fix build issues with gcc-4.4.4") Link: http://lkml.kernel.org/r/2de3b929290d88a723ed829a3e3cbd02044714df.1475114627.git.johnyoun@synopsys.com Signed-off-by:
John Youn <johnyoun@synopsys.com> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Eric Ren authored
The testcase "mmaptruncate" of ocfs2-test deadlocks occasionally. In this testcase, we create a 2*CLUSTER_SIZE file and mmap() on it; there are 2 process repeatedly performing the following operations respectively: one is doing memset(mmaped_addr + 2*CLUSTER_SIZE - 1, 'a', 1), while the another is playing ftruncate(fd, 2*CLUSTER_SIZE) and then ftruncate(fd, CLUSTER_SIZE) again and again. This is the backtrace when the deadlock happens: __wait_on_bit_lock+0x50/0xa0 __lock_page+0xb7/0xc0 ocfs2_write_begin_nolock+0x163f/0x1790 [ocfs2] ocfs2_page_mkwrite+0x1c7/0x2a0 [ocfs2] do_page_mkwrite+0x66/0xc0 handle_mm_fault+0x685/0x1350 __do_page_fault+0x1d8/0x4d0 trace_do_page_fault+0x37/0xf0 do_async_page_fault+0x19/0x70 async_page_fault+0x28/0x30 In ocfs2_write_begin_nolock(), we first grab the pages and then allocate disk space for this write; ocfs2_try_to_free_truncate_log() will be called if -ENOSPC is returned; if we're lucky to get enough clusters, which is usually the case, we start over again. But in ocfs2_free_write_ctxt() the target page isn't unlocked, so we will deadlock when trying to grab the target page again. Also, -ENOMEM might be returned in ocfs2_grab_pages_for_write(). Another deadlock will happen in __do_page_mkwrite() if ocfs2_page_mkwrite() returns non-VM_FAULT_LOCKED, and along with a locked target page. These two errors fail on the same path, so fix them by unlocking the target page manually before ocfs2_free_write_ctxt(). Jan Kara helps me clear out the JBD2 part, and suggest the hint for root cause. Changes since v1: 1. Also put ENOMEM error case into consideration. Link: http://lkml.kernel.org/r/1474173902-32075-1-git-send-email-zren@suse.com Signed-off-by:
Eric Ren <zren@suse.com> Reviewed-by:
He Gang <ghe@suse.com> Acked-by:
Joseph Qi <joseph.qi@huawei.com> Cc: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Johannes Weiner authored
Antonio reports the following crash when using fuse under memory pressure: kernel BUG at /build/linux-a2WvEb/linux-4.4.0/mm/workingset.c:346! invalid opcode: 0000 [#1] SMP Modules linked in: all of them CPU: 2 PID: 63 Comm: kswapd0 Not tainted 4.4.0-36-generic #55-Ubuntu Hardware name: System manufacturer System Product Name/P8H67-M PRO, BIOS 3904 04/27/2013 task: ffff88040cae6040 ti: ffff880407488000 task.ti: ffff880407488000 RIP: shadow_lru_isolate+0x181/0x190 Call Trace: __list_lru_walk_one.isra.3+0x8f/0x130 list_lru_walk_one+0x23/0x30 scan_shadow_nodes+0x34/0x50 shrink_slab.part.40+0x1ed/0x3d0 shrink_zone+0x2ca/0x2e0 kswapd+0x51e/0x990 kthread+0xd8/0xf0 ret_from_fork+0x3f/0x70 which corresponds to the following sanity check in the shadow node tracking: BUG_ON(node->count & RADIX_TREE_COUNT_MASK); The workingset code tracks radix tree nodes that exclusively contain shadow entries of evicted pages in them, and this (somewhat obscure) line checks whether there are real pages left that would interfere with reclaim of the radix tree node under memory pressure. While discussing ways how fuse might sneak pages into the radix tree past the workingset code, Miklos pointed to replace_page_cache_page(), and indeed there is a problem there: it properly accounts for the old page being removed - __delete_from_page_cache() does that - but then does a raw raw radix_tree_insert(), not accounting for the replacement page. Eventually the page count bits in node->count underflow while leaving the node incorrectly linked to the shadow node LRU. To address this, make sure replace_page_cache_page() uses the tracked page insertion code, page_cache_tree_insert(). This fixes the page accounting and makes sure page-containing nodes are properly unlinked from the shadow node LRU again. Also, make the sanity checks a bit less obscure by using the helpers for checking the number of pages and shadows in a radix tree node. Fixes: 449dd698 ("mm: keep page cache radix tree nodes in check") Link: http://lkml.kernel.org/r/20160919155822.29498-1-hannes@cmpxchg.org Signed-off-by:
Johannes Weiner <hannes@cmpxchg.org> Reported-by:
Antonio SJ Musumeci <trapexit@spawn.link> Debugged-by:
Miklos Szeredi <miklos@szeredi.hu> Cc: <stable@vger.kernel.org> [3.15+] Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Javi Merino authored
Change my email address to my kernel.org account instead of the ARM one. Signed-off-by:
Javi Merino <javi.merino@arm.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- Sep 30, 2016
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Wanpeng Li authored
This warning: WARNING: CPU: 0 PID: 3331 at arch/x86/entry/common.c:45 enter_from_user_mode+0x32/0x50 CPU: 0 PID: 3331 Comm: ldt_gdt_64 Not tainted 4.8.0-rc7+ #13 Call Trace: dump_stack+0x99/0xd0 __warn+0xd1/0xf0 warn_slowpath_null+0x1d/0x20 enter_from_user_mode+0x32/0x50 error_entry+0x6d/0xc0 ? general_protection+0x12/0x30 ? native_load_gs_index+0xd/0x20 ? do_set_thread_area+0x19c/0x1f0 SyS_set_thread_area+0x24/0x30 do_int80_syscall_32+0x7c/0x220 entry_INT80_compat+0x38/0x50 ... can be reproduced by running the GS testcase of the ldt_gdt test unit in the x86 selftests. do_int80_syscall_32() will call enter_form_user_mode() to convert context tracking state from user state to kernel state. The load_gs_index() call can fail with user gsbase, gsbase will be fixed up and proceed if this happen. However, enter_from_user_mode() will be called again in the fixed up path though it is context tracking kernel state currently. This patch fixes it by just fixing up gsbase and telling lockdep that IRQs are off once load_gs_index() failed with user gsbase. Signed-off-by:
Wanpeng Li <wanpeng.li@hotmail.com> Acked-by:
Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> 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/1475197266-3440-1-git-send-email-wanpeng.li@hotmail.com Signed-off-by:
Ingo Molnar <mingo@kernel.org>
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Andy Lutomirski authored
Otherwise arch_task_struct_size == 0 and we die. While we're at it, set X86_FEATURE_ALWAYS, too. Reported-by:
David Saggiorato <david@saggiorato.net> Tested-by:
David Saggiorato <david@saggiorato.net> Signed-off-by:
Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave@sr71.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Fixes: aaeb5c01c5b ("x86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and use it on x86") Link: http://lkml.kernel.org/r/8de723afbf0811071185039f9088733188b606c9.1475103911.git.luto@kernel.org Signed-off-by:
Ingo Molnar <mingo@kernel.org>
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Segher Boessenkool authored
We need to call GET_LE to read hdr->e_type. Fixes: 57f90c3d ("x86/vdso: Error out if the vDSO isn't a valid DSO") Reported-by:
Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by:
Segher Boessenkool <segher@kernel.crashing.org> Acked-by:
Andy Lutomirski <luto@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: linux-next@vger.kernel.org Link: http://lkml.kernel.org/r/20160929193442.GA16617@gate.crashing.org Signed-off-by:
Thomas Gleixner <tglx@linutronix.de>
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Andy Lutomirski authored
The condition for reading CR4 was wrong: there are some CPUs with CPUID but not CR4. Rather than trying to make the condition exact, use __read_cr4_safe(). Fixes: 18bc7bd5 ("x86/boot: Synchronize trampoline_cr4_features and mmu_cr4_features directly") Reported-by:
<david@saggiorato.net> Signed-off-by:
Andy Lutomirski <luto@kernel.org> Reviewed-by:
Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Link: http://lkml.kernel.org/r/8c453a61c4f44ab6ff43c29780ba04835234d2e5.1475178369.git.luto@kernel.org Signed-off-by:
Thomas Gleixner <tglx@linutronix.de>
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Xin Long authored
When sctp dumps all the ep->assocs, it needs to lock_sock first, but now it locks sock in rcu_read_lock, and lock_sock may sleep, which would break rcu_read_lock. This patch is to get and hold one sock when traversing the list. After that and get out of rcu_read_lock, lock and dump it. Then it will traverse the list again to get the next one until all sctp socks are dumped. For sctp_diag_dump_one, it fixes this issue by holding asoc and moving cb() out of rcu_read_lock in sctp_transport_lookup_process. Fixes: 8f840e47 ("sctp: add the sctp_diag.c file") Signed-off-by:
Xin Long <lucien.xin@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Xin Long says: ==================== sctp: a bunch of fixes for prsctp polices This patchset is to fix 2 issues for prsctp polices: 1. patch 1 and 2 fix "netperf-Throughput_Mbps -37.2% regression" issue when overloading the CPU. 2. patch 3 fix "prsctp polices should check both sides' prsctp_capable, instead of only local side". ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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