1. 28 Jun, 2018 22 commits
  2. 27 Jun, 2018 5 commits
  3. 24 Jun, 2018 13 commits
    • Linus Torvalds's avatar
      Linux 4.18-rc2 · 7daf201d
      Linus Torvalds authored
      7daf201d
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · c81b995f
      Linus Torvalds authored
      Pull perf fixes from Thomas Gleixner:
       "A pile of perf updates:
      
        Kernel side:
      
         - Remove an incorrect warning in uprobe_init_insn() when
           insn_get_length() fails. The error return code is handled at the
           call site.
      
         - Move the inline keyword to the right place in the perf ringbuffer
           code to address a W=1 build warning.
      
        Tooling:
      
        perf stat:
      
         - Fix metric column header display alignment
      
         - Improve error messages for default attributes, providing better
           output for error in command line.
      
         - Add --interval-clear option, to provide a 'watch' like printing
      
        perf script:
      
         - Show hw-cache events too
      
        perf c2c:
      
         - Fix data dependency problem in layout of 'struct c2c_hist_entry'
      
        Core:
      
         - Do not blindly assume that 'struct perf_evsel' can be obtained via
           a straight forward container_of() as there are call sites which
           hand in a plain 'struct hist' which is not part of a container.
      
         - Fix error index in the PMU event parser, so that error messages can
           point to the problematic token"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf/core: Move the inline keyword at the beginning of the function declaration
        uprobes/x86: Remove incorrect WARN_ON() in uprobe_init_insn()
        perf script: Show hw-cache events
        perf c2c: Keep struct hist_entry at the end of struct c2c_hist_entry
        perf stat: Add event parsing error handling to add_default_attributes
        perf stat: Allow to specify specific metric column len
        perf stat: Fix metric column header display alignment
        perf stat: Use only color_fprintf call in print_metric_only
        perf stat: Add --interval-clear option
        perf tools: Fix error index for pmu event parser
        perf hists: Reimplement hists__has_callchains()
        perf hists browser gtk: Use hist_entry__has_callchains()
        perf hists: Make hist_entry__has_callchains() work with 'perf c2c'
        perf hists: Save the callchain_size in struct hist_entry
      c81b995f
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 2ce413ec
      Linus Torvalds authored
      Pull rseq fixes from Thomas Gleixer:
       "A pile of rseq related fixups:
      
         - Prevent infinite recursion when delivering SIGSEGV
      
         - Remove the abort of rseq critical section on fork() as syscalls
           inside rseq critical sections are explicitely forbidden. So no
           point in doing the abort on the child.
      
         - Align the rseq structure on 32 bytes in the ARM selftest code.
      
         - Fix file permissions of the test script"
      
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        rseq: Avoid infinite recursion when delivering SIGSEGV
        rseq/cleanup: Do not abort rseq c.s. in child on fork()
        rseq/selftests/arm: Align 'struct rseq_cs' on 32 bytes
        rseq/selftests: Make run_param_test.sh executable
      2ce413ec
    • Linus Torvalds's avatar
      Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 64dd7655
      Linus Torvalds authored
      Pull EFI fixes from Thomas Gleixner:
       "Two fixlets for the EFI maze:
      
         - Properly zero variables to prevent an early boot hang on EFI mixed
           mode systems
      
         - Fix the fallout of merging the 32bit and 64bit variants of EFI PCI
           related code which ended up chosing the 32bit variant of the actual
           EFi call invocation which leads to failures on 64bit"
      
      * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        efi/x86: Fix incorrect invocation of PciIo->Attributes()
        efi/libstub/tpm: Initialize efi_physical_addr_t vars to zero for mixed mode
      64dd7655
    • Linus Torvalds's avatar
      Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d3a6749c
      Linus Torvalds authored
      Pull core fixes from Thomas Gleixner:
       "Two tiny fixes:
      
         - Add the missing machine_real_restart() to objtools noreturn list so
           it stops complaining
      
         - Fix a trivial comment typo"
      
      * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        kernel.h: Fix a typo in comment
        objtool: Add machine_real_restart() to the noreturn list
      d3a6749c
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d4e860ea
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
       "A set of fixes for x86:
      
         - Make Xen PV guest deal with speculative store bypass correctly
      
         - Address more fallout from the 5-Level pagetable handling. Undo an
           __initdata annotation to avoid section mismatch and malfunction
           when post init code would touch the freed variable.
      
         - Handle exception fixup in math_error() before calling notify_die().
           The reverse call order incorrectly triggers notify_die() listeners
           for soemthing which is handled correctly at the site which issues
           the floating point instruction.
      
         - Fix an off by one in the LLC topology calculation on AMD
      
         - Handle non standard memory block sizes gracefully un UV platforms
      
         - Plug a memory leak in the microcode loader
      
         - Sanitize the purgatory build magic
      
         - Add the x86 specific device tree bindings directory to the x86
           MAINTAINER file patterns"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/mm: Fix 'no5lvl' handling
        Revert "x86/mm: Mark __pgtable_l5_enabled __initdata"
        x86/CPU/AMD: Fix LLC ID bit-shift calculation
        MAINTAINERS: Add file patterns for x86 device tree bindings
        x86/microcode/intel: Fix memleak in save_microcode_patch()
        x86/platform/UV: Add kernel parameter to set memory block size
        x86/platform/UV: Use new set memory block size function
        x86/platform/UV: Add adjustable set memory block size function
        x86/build: Remove unnecessary preparation for purgatory
        Revert "kexec/purgatory: Add clean-up for purgatory directory"
        x86/xen: Add call of speculative_store_bypass_ht_init() to PV paths
        x86: Call fixup_exception() before notify_die() in math_error()
      d4e860ea
    • Linus Torvalds's avatar
      Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 177d363e
      Linus Torvalds authored
      Pull x86 pti fixes from Thomas Gleixner:
       "Two small updates for the speculative distractions:
      
         - Make it more clear to the compiler that array_index_mask_nospec()
           is not subject for optimizations. It's not perfect, but ...
      
         - Don't report XEN PV guests as vulnerable because their mitigation
           state depends on the hypervisor. Report unknown and refer to the
           hypervisor requirement"
      
      * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/spectre_v1: Disable compiler optimizations over array_index_mask_nospec()
        x86/pti: Don't report XenPV as vulnerable
      177d363e
    • Linus Torvalds's avatar
      Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 2da2ca24
      Linus Torvalds authored
      Pull locking fixes from Thomas Gleixner:
       "A set of fixes and updates for the locking code:
      
         - Prevent lockdep from updating irq state within its own code and
           thereby confusing itself.
      
         - Buid fix for older GCCs which mistreat anonymous unions
      
         - Add a missing lockdep annotation in down_read_non_onwer() which
           causes up_read_non_owner() to emit a lockdep splat
      
         - Remove the custom alpha dec_and_lock() implementation which is
           incorrect in terms of ordering and use the generic one.
      
        The remaining two commits are not strictly fixes. They provide irqsave
        variants of atomic_dec_and_lock() and refcount_dec_and_lock(). These
        are required to merge the relevant updates and cleanups into different
        maintainer trees for 4.19, so routing them into mainline without
        actual users is the sanest approach.
      
        They should have been in -rc1, but last weekend I took the liberty to
        just avoid computers in order to regain some mental sanity"
      
      * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        locking/qspinlock: Fix build for anonymous union in older GCC compilers
        locking/lockdep: Do not record IRQ state within lockdep code
        locking/rwsem: Fix up_read_non_owner() warning with DEBUG_RWSEMS
        locking/refcounts: Implement refcount_dec_and_lock_irqsave()
        atomic: Add irqsave variant of atomic_dec_and_lock()
        alpha: Remove custom dec_and_lock() implementation
      2da2ca24
    • Linus Torvalds's avatar
      Merge branch 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · a43de489
      Linus Torvalds authored
      Pull ras fixes from Thomas Gleixner:
       "A set of fixes for RAS/MCE:
      
         - Improve the error message when the kernel cannot recover from a MCE
           so the maximum amount of information gets provided.
      
         - Individually check MCE recovery features on SkyLake CPUs instead of
           assuming none when the CAPID0 register does not advertise the
           general ability for recovery.
      
         - Prevent MCE to output inconsistent messages which first show an
           error location and then claim that the source is unknown.
      
         - Prevent overwriting MCi_STATUS in the attempt to gather more
           information when a fatal MCE has alreay been detected. This leads
           to empty status values in the printout and failing to react
           promptly on the fatal event"
      
      * 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/mce: Fix incorrect "Machine check from unknown source" message
        x86/mce: Do not overwrite MCi_STATUS in mce_no_way_out()
        x86/mce: Check for alternate indication of machine check recovery on Skylake
        x86/mce: Improve error message when kernel cannot recover
      a43de489
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 6242258b
      Linus Torvalds authored
      Pull timer fixes from Thomas Gleixner:
       "A small set of fixes for time(r) related issues:
      
         - Fix a long standing conversion issue in jiffies_to_msecs() for odd
           HZ values like 1024 or 1200 which resulted in returning 0 for small
           jiffies values due to rounding down.
      
         - Use the proper CONFIG symbol in the new Y2038 safe compat code for
           posix-timers. Not yet a visible breakage, but this will immediately
           trigger when the architecture support for the new interfaces is
           merged.
      
         - Return an error code in the STM32 clocksource driver on failure
           instead of success.
      
         - Remove the redundant and stale irq disabled check in the posix cpu
           timer code. The check is at the wrong place anyway and lockdep
           already covers it via the sighand lock locking coverage"
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        time: Make sure jiffies_to_msecs() preserves non-zero time periods
        posix-timers: Fix nanosleep_copyout() for CONFIG_COMPAT_32BIT_TIME
        clocksource/drivers/stm32: Fix error return code
        posix-cpu-timers: Remove lockdep_assert_irqs_disabled()
      6242258b
    • Linus Torvalds's avatar
      Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 78fea633
      Linus Torvalds authored
      Pull irq fixes from Thomas Gleixner:
       "A set of fixes mostly for the ARM/GIC world:
      
         - Fix the MSI affinity handling in the ls-scfg irq chip driver so it
           updates and uses the effective affinity mask correctly
      
         - Prevent binding LPIs to offline CPUs and respect the Cavium erratum
           which requires that LPIs which belong to an offline NUMA node are
           not bound to a CPU on a different NUMA node.
      
         - Free only the amount of allocated interrupts in the GIC-V2M driver
           instead of trying to free log2(nrirqs).
      
         - Prevent emitting SYNC and VSYNC targetting non existing interrupt
           collections in the GIC-V3 ITS driver
      
         - Ensure that the GIV-V3 interrupt redistributor is correctly
           reprogrammed on CPU hotplug
      
         - Remove a stale unused helper function"
      
      * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        irqdesc: Delete irq_desc_get_msi_desc()
        irqchip/gic-v3-its: Fix reprogramming of redistributors on CPU hotplug
        irqchip/gic-v3-its: Only emit VSYNC if targetting a valid collection
        irqchip/gic-v3-its: Only emit SYNC if targetting a valid collection
        irqchip/gic-v3-its: Don't bind LPI to unavailable NUMA node
        irqchip/gic-v2m: Fix SPI release on error path
        irqchip/ls-scfg-msi: Fix MSI affinity handling
        genirq/debugfs: Add missing IRQCHIP_SUPPORTS_LEVEL_MSI debug
      78fea633
    • Linus Torvalds's avatar
      Merge tag 'mips_fixes_4.18_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux · e0bc833d
      Linus Torvalds authored
      Pull MIPS fixes from Paul Burton:
       "A few MIPS fixes for 4.18:
      
         - a GPIO device name fix for a regression in v4.15-rc1.
      
         - an errata workaround for the BCM5300X platform.
      
         - a fix to ftrace function graph tracing, broken for a long time with
           the fix applying cleanly back as far as v3.17.
      
         - addition of read barriers to in{b,w,l,q}() functions, matching
           behavior of other architectures & mirroring the equivalent addition
           to read{b,w,l,q} in v4.17-rc2.
      
        Plus changes to wire up new syscalls introduced in the 4.18 cycle:
      
         - Restartable sequences support is added, including MIPS support in
           the selftests.
      
         - io_pgetevents is wired up"
      
      * tag 'mips_fixes_4.18_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
        MIPS: Wire up io_pgetevents syscall
        rseq/selftests: Implement MIPS support
        MIPS: Wire up the restartable sequences (rseq) syscall
        MIPS: Add syscall detection for restartable sequences
        MIPS: Add support for restartable sequences
        MIPS: io: Add barrier after register read in inX()
        mips: ftrace: fix static function graph tracing
        MIPS: BCM47XX: Enable 74K Core ExternalSync for PCIe erratum
        MIPS: pb44: Fix i2c-gpio GPIO descriptor table
      e0bc833d
    • Ard Biesheuvel's avatar
      efi/x86: Fix incorrect invocation of PciIo->Attributes() · 2e6eb40c
      Ard Biesheuvel authored
      The following commit:
      
        2c3625cb ("efi/x86: Fold __setup_efi_pci32() and __setup_efi_pci64() into one function")
      
      ... merged the two versions of __setup_efi_pciXX(), without taking into
      account that the 32-bit version used a rather dodgy trick to pass an
      immediate 0 constant as argument for a uint64_t parameter.
      
      The issue is caused by the fact that on x86, UEFI protocol method calls
      are redirected via struct efi_config::call(), which is a variadic function,
      and so the compiler has to infer the types of the parameters from the
      arguments rather than from the prototype.
      
      As the 32-bit x86 calling convention passes arguments via the stack,
      passing the unqualified constant 0 twice is the same as passing 0ULL,
      which is why the 32-bit code in __setup_efi_pci32() contained the
      following call:
      
        status = efi_early->call(pci->attributes, pci,
                                 EfiPciIoAttributeOperationGet, 0, 0,
                                 &attributes);
      
      to invoke this UEFI protocol method:
      
        typedef
        EFI_STATUS
        (EFIAPI *EFI_PCI_IO_PROTOCOL_ATTRIBUTES) (
          IN  EFI_PCI_IO_PROTOCOL                     *This,
          IN  EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION Operation,
          IN  UINT64                                  Attributes,
          OUT UINT64                                  *Result OPTIONAL
          );
      
      After the merge, we inadvertently ended up with this version for both
      32-bit and 64-bit builds, breaking the latter.
      
      So replace the two zeroes with the explicitly typed constant 0ULL,
      which works as expected on both 32-bit and 64-bit builds.
      
      Wilfried tested the 64-bit build, and I checked the generated assembly
      of a 32-bit build with and without this patch, and they are identical.
      Reported-by: default avatarWilfried Klaebe <linux-kernel@lebenslange-mailadresse.de>
      Tested-by: default avatarWilfried Klaebe <linux-kernel@lebenslange-mailadresse.de>
      Signed-off-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Matt Fleming <matt@codeblueprint.co.uk>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: hdegoede@redhat.com
      Cc: linux-efi@vger.kernel.org
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      2e6eb40c