1. 13 Feb, 2019 6 commits
  2. 11 Feb, 2019 7 commits
    • Linus Torvalds's avatar
      Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal · aa0c38cf
      Linus Torvalds authored
      Pull thermal SoC management fixes from Eduardo Valentin:
       "Minor fixes on of-thermal and cpu cooling"
      
      * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
        thermal: cpu_cooling: Clarify error message
        thermal: of-thermal: Print name of device node with error
      aa0c38cf
    • Linus Torvalds's avatar
      Merge tag 's390-5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · fb7453e6
      Linus Torvalds authored
      Pull s390 bug fixes from Martin Schwidefsky:
      
       - Fix specification exception on z196 during ap probe
      
       - A fix for suspend-to-disk, the VMAP stack patch broke the
         swsusp_arch_suspend function
      
       - The EMC CKD ioctl of the dasd driver needs an additional size check
         for user space data
      
       - Revert an incorrect patch for the PCI base code that removed a bit
         lock that turned out to be required after all
      
      * tag 's390-5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
        Revert "s390/pci: remove bit_lock usage in interrupt handler"
        s390/zcrypt: fix specification exception on z196 during ap probe
        s390/dasd: fix using offset into zero size array error
        s390/suspend: fix stack setup in swsusp_arch_suspend
      fb7453e6
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha · 244cce14
      Linus Torvalds authored
      Pull alpha fixes from Matt Turner:
       "A few changes for alpha, including a build fix, a fix for the Eiger
        platform, and a fix for a tricky bug uncovered by the strace test
        suite that has existed since at least 1997 (v2.1.32)!"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha:
        alpha: fix page fault handling for r16-r18 targets
        alpha: Fix Eiger NR_IRQS to 128
        tools uapi: fix Alpha support
      244cce14
    • Waiman Long's avatar
      Documentation: Fix grammatical error in sysctl/fs.txt & clarify negative dentry · 1413d9af
      Waiman Long authored
      Fix a grammatical error in the dentry-state text and clarify the usage
      of negative dentries.
      
      Fixes: af0c9af1 ("fs/dcache: Track & report number of negative dentries")
      Signed-off-by: default avatarWaiman Long <longman@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      1413d9af
    • Sergei Trofimovich's avatar
      alpha: fix page fault handling for r16-r18 targets · 491af60f
      Sergei Trofimovich authored
      Fix page fault handling code to fixup r16-r18 registers.
      Before the patch code had off-by-two registers bug.
      This bug caused overwriting of ps,pc,gp registers instead
      of fixing intended r16,r17,r18 (see `struct pt_regs`).
      
      More details:
      
      Initially Dmitry noticed a kernel bug as a failure
      on strace test suite. Test passes unmapped userspace
      pointer to io_submit:
      
      ```c
          #include <err.h>
          #include <unistd.h>
          #include <sys/mman.h>
          #include <asm/unistd.h>
          int main(void)
          {
              unsigned long ctx = 0;
              if (syscall(__NR_io_setup, 1, &ctx))
                  err(1, "io_setup");
              const size_t page_size = sysconf(_SC_PAGESIZE);
              const size_t size = page_size * 2;
              void *ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
                               MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
              if (MAP_FAILED == ptr)
                  err(1, "mmap(%zu)", size);
              if (munmap(ptr, size))
                  err(1, "munmap");
              syscall(__NR_io_submit, ctx, 1, ptr + page_size);
              syscall(__NR_io_destroy, ctx);
              return 0;
          }
      ```
      
      Running this test causes kernel to crash when handling page fault:
      
      ```
          Unable to handle kernel paging request at virtual address ffffffffffff9468
          CPU 3
          aio(26027): Oops 0
          pc = [<fffffc00004eddf8>]  ra = [<fffffc00004edd5c>]  ps = 0000    Not tainted
          pc is at sys_io_submit+0x108/0x200
          ra is at sys_io_submit+0x6c/0x200
          v0 = fffffc00c58e6300  t0 = fffffffffffffff2  t1 = 000002000025e000
          t2 = fffffc01f159fef8  t3 = fffffc0001009640  t4 = fffffc0000e0f6e0
          t5 = 0000020001002e9e  t6 = 4c41564e49452031  t7 = fffffc01f159c000
          s0 = 0000000000000002  s1 = 000002000025e000  s2 = 0000000000000000
          s3 = 0000000000000000  s4 = 0000000000000000  s5 = fffffffffffffff2
          s6 = fffffc00c58e6300
          a0 = fffffc00c58e6300  a1 = 0000000000000000  a2 = 000002000025e000
          a3 = 00000200001ac260  a4 = 00000200001ac1e8  a5 = 0000000000000001
          t8 = 0000000000000008  t9 = 000000011f8bce30  t10= 00000200001ac440
          t11= 0000000000000000  pv = fffffc00006fd320  at = 0000000000000000
          gp = 0000000000000000  sp = 00000000265fd174
          Disabling lock debugging due to kernel taint
          Trace:
          [<fffffc0000311404>] entSys+0xa4/0xc0
      ```
      
      Here `gp` has invalid value. `gp is s overwritten by a fixup for the
      following page fault handler in `io_submit` syscall handler:
      
      ```
          __se_sys_io_submit
          ...
              ldq     a1,0(t1)
              bne     t0,4280 <__se_sys_io_submit+0x180>
      ```
      
      After a page fault `t0` should contain -EFALUT and `a1` is 0.
      Instead `gp` was overwritten in place of `a1`.
      
      This happens due to a off-by-two bug in `dpf_reg()` for `r16-r18`
      (aka `a0-a2`).
      
      I think the bug went unnoticed for a long time as `gp` is one
      of scratch registers. Any kernel function call would re-calculate `gp`.
      
      Dmitry tracked down the bug origin back to 2.1.32 kernel version
      where trap_a{0,1,2} fields were inserted into struct pt_regs.
      And even before that `dpf_reg()` contained off-by-one error.
      
      Cc: Richard Henderson <rth@twiddle.net>
      Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
      Cc: linux-alpha@vger.kernel.org
      Cc: linux-kernel@vger.kernel.org
      Reported-and-reviewed-by: default avatar"Dmitry V. Levin" <ldv@altlinux.org>
      Cc: stable@vger.kernel.org # v2.1.32+
      Bug: https://bugs.gentoo.org/672040Signed-off-by: default avatarSergei Trofimovich <slyfox@gentoo.org>
      Signed-off-by: default avatarMatt Turner <mattst88@gmail.com>
      491af60f
    • Meelis Roos's avatar
      alpha: Fix Eiger NR_IRQS to 128 · bfc91368
      Meelis Roos authored
      Eiger machine vector definition has nr_irqs 128, and working 2.6.26
      boot shows SCSI getting IRQ-s 64 and 65. Current kernel boot fails
      because Symbios SCSI fails to request IRQ-s and does not find the disks.
      It has been broken at least since 3.18 - the earliest I could test with
      my gcc-5.
      
      The headers have moved around and possibly another order of defines has
      worked in the past - but since 128 seems to be correct and used, fix
      arch/alpha/include/asm/irq.h to have NR_IRQS=128 for Eiger.
      
      This fixes 4.19-rc7 boot on my Force Flexor A264 (Eiger subarch).
      
      Cc: stable@vger.kernel.org # v3.18+
      Signed-off-by: default avatarMeelis Roos <mroos@linux.ee>
      Signed-off-by: default avatarMatt Turner <mattst88@gmail.com>
      bfc91368
    • Bob Tracy's avatar
      tools uapi: fix Alpha support · 842fc0f5
      Bob Tracy authored
      Cc: stable@vger.kernel.org # v4.18+
      Signed-off-by: default avatarBob Tracy <rct@frus.com>
      Signed-off-by: default avatarMatt Turner <mattst88@gmail.com>
      842fc0f5
  3. 10 Feb, 2019 7 commits
  4. 09 Feb, 2019 9 commits
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · df3865f8
      Linus Torvalds authored
      Pull i2c fixes from Wolfram Sang:
       "One PM related driver bugfix and a MAINTAINERS update"
      
      * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        MAINTAINERS: Update the ocores i2c bus driver maintainer, etc
        i2c: omap: Use noirq system sleep pm ops to idle device for suspend
      df3865f8
    • Linus Torvalds's avatar
      Merge tag 'mips_fixes_5.0_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux · e8b50608
      Linus Torvalds authored
      Pull MIPS fixes from Paul Burton:
       "A batch of MIPS fixes for 5.0, nothing too scary.
      
         - A workaround for a Loongson 3 CPU bug is the biggest change, but
           still fairly straightforward. It adds extra memory barriers (sync
           instructions) around atomics to avoid a CPU bug that can break
           atomicity.
      
         - Loongson64 also sees a fix for powering off some systems which
           would incorrectly reboot rather than waiting for the power down
           sequence to complete.
      
         - We have DT fixes for the Ingenic JZ4740 SoC & the JZ4780-based Ci20
           board, and a DT warning fix for the Nexsys4/MIPSfpga board.
      
         - The Cavium Octeon platform sees a further fix to the behaviour of
           the pcie_disable command line argument that was introduced in v3.3.
      
         - The VDSO, introduced in v4.4, sees build fixes for configurations
           of GCC that were built using the --with-fp-32= flag to specify a
           default 32-bit floating point ABI.
      
         - get_frame_info() sees a fix for configurations with
           CONFIG_KALLSYMS=n, for which it previously always returned an
           error.
      
         - If the MIPS Coherence Manager (CM) reports an error then we'll now
           clear that error correctly so that the GCR_ERROR_CAUSE register
           will be updated with information about any future errors"
      
      * tag 'mips_fixes_5.0_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
        mips: cm: reprime error cause
        mips: loongson64: remove unreachable(), fix loongson_poweroff().
        MIPS: Remove function size check in get_frame_info()
        MIPS: Use lower case for addresses in nexys4ddr.dts
        MIPS: Loongson: Introduce and use loongson_llsc_mb()
        MIPS: VDSO: Include $(ccflags-vdso) in o32,n32 .lds builds
        MIPS: VDSO: Use same -m%-float cflag as the kernel proper
        MIPS: OCTEON: don't set octeon_dma_bar_type if PCI is disabled
        DTS: CI20: Fix bugs in ci20's device tree.
        MIPS: DTS: jz4740: Correct interrupt number of DMA core
      e8b50608
    • Linus Torvalds's avatar
      Merge tag 'for-linus-20190209' of git://git.kernel.dk/linux-block · e5a8a116
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
      
       - NVMe pull request from Christoph, fixing namespace locking when
         dealing with the effects log, and a rapid add/remove issue (Keith)
      
       - blktrace tweak, ensuring requests with -1 sectors are shown (Jan)
      
       - link power management quirk for a Smasung SSD (Hans)
      
       - m68k nfblock dynamic major number fix (Chengguang)
      
       - series fixing blk-iolatency inflight counter issue (Liu)
      
       - ensure that we clear ->private when setting up the aio kiocb (Mike)
      
       - __find_get_block_slow() rate limit print (Tetsuo)
      
      * tag 'for-linus-20190209' of git://git.kernel.dk/linux-block:
        blk-mq: remove duplicated definition of blk_mq_freeze_queue
        Blk-iolatency: warn on negative inflight IO counter
        blk-iolatency: fix IO hang due to negative inflight counter
        blktrace: Show requests without sector
        fs: ratelimit __find_get_block_slow() failure message.
        m68k: set proper major_num when specifying module param major_num
        libata: Add NOLPM quirk for SAMSUNG MZ7TE512HMHP-000L1 SSD
        nvme-pci: fix rapid add remove sequence
        nvme: lock NS list changes while handling command effects
        aio: initialize kiocb private in case any filesystems expect it.
      e5a8a116
    • Linus Torvalds's avatar
      Merge tag 'mtd/fixes-for-5.0-rc6' of git://git.infradead.org/linux-mtd · 5610789a
      Linus Torvalds authored
      Pull mtd fixes from Boris Brezillon:
      
       - Fix a problem with the imx28 ECC engine
      
       - Remove a debug trace introduced in 2b6f0090 ("mtd: Check
         add_mtd_device() ret code")
      
       - Make sure partitions of size 0 can be registered
      
       - Fix kernel-doc warning in the rawnand core
      
       - Fix the error path of spinand_init() (missing manufacturer cleanup in
         a few places)
      
       - Address a problem with the SPI NAND PROGRAM LOAD operation which does
         not work as expected on some parts.
      
      * tag 'mtd/fixes-for-5.0-rc6' of git://git.infradead.org/linux-mtd:
        mtd: rawnand: gpmi: fix MX28 bus master lockup problem
        mtd: Make sure mtd->erasesize is valid even if the partition is of size 0
        mtd: Remove a debug trace in mtdpart.c
        mtd: rawnand: fix kernel-doc warnings
        mtd: spinand: Fix the error/cleanup path in spinand_init()
        mtd: spinand: Handle the case where PROGRAM LOAD does not reset the cache
      5610789a
    • Linus Torvalds's avatar
      Merge tag 'for-linus-5.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip · 3e5e692f
      Linus Torvalds authored
      Pull xen fixes from Juergen Gross:
       "Two very minor fixes: one remove of a #include for an unused header
        and a fix of the xen ML address in MAINTAINERS"
      
      * tag 'for-linus-5.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
        MAINTAINERS: unify reference to xen-devel list
        arch/arm/xen: Remove duplicate header
      3e5e692f
    • Ingo Molnar's avatar
      Merge tag 'perf-urgent-for-mingo-5.0-20190205' of... · 3bb26006
      Ingo Molnar authored
      Merge tag 'perf-urgent-for-mingo-5.0-20190205' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
      
      Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
      
      perf trace:
      
        Arnaldo Carvalho de Melo:
      
          Fix handling of probe:vfs_getname when the probed routine is
          inlined in multiple places, fixing the collection of the 'filename'
          parameter in open syscalls.
      
      perf test:
      
        Gustavo A. R. Silva:
      
          Fix bitwise operator usage in evsel-tp-sched test, which made tat
          test always detect fields as signed.
      
        Jiri Olsa:
      
          Filter out hidden symbols from labels, added in systems where the
          annobin plugin is used, such as RHEL8, which, if left in place make
          the DWARF unwind 'perf test' to fail on PPC.
      
        Tony Jones:
      
          Fix 'perf_event_attr' tests when building with python3.
      
      perf mem/c2c:
      
        Ravi Bangoria:
      
          Fix perf_mem_events on PowerPC.
      
      tools headers UAPI:
      
        Arnaldo Carvalho de Melo:
      
          Sync linux/in.h copy from the kernel sources, silencing a perf build warning.
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      3bb26006
    • Linus Torvalds's avatar
      Merge tag 'armsoc-fixes-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc · 46c291e2
      Linus Torvalds authored
      Pull ARM SoC fixes from Arnd Bergmann:
       "This is a bit larger than normal, as we had not managed to send out a
        pull request before traveling for a week without my signing key.
      
        There are multiple code fixes for older bugs, all of which should get
        backported into stable kernels:
      
         - tango: one fix for multiplatform configurations broken on other
           platforms when tango is enabled
      
         - arm_scmi: device unregistration fix
      
         - iop32x: fix kernel oops from extraneous __init annotation
      
         - pxa: remove a double kfree
      
         - fsl qbman: close an interrupt clearing race
      
        The rest is the usual collection of smaller fixes for device tree
        files, on the renesas, allwinner, meson, omap, davinci, qualcomm and
        imx platforms.
      
        Some of these are for compile-time warnings, most are for board
        specific functionality that fails to work because of incorrect
        settings"
      
      * tag 'armsoc-fixes-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (30 commits)
        ARM: tango: Improve ARCH_MULTIPLATFORM compatibility
        firmware: arm_scmi: provide the mandatory device release callback
        ARM: iop32x/n2100: fix PCI IRQ mapping
        arm64: dts: add msm8996 compatible to gicv3
        ARM: dts: am335x-shc.dts: fix wrong cd pin level
        ARM: dts: n900: fix mmc1 card detect gpio polarity
        ARM: dts: omap3-gta04: Fix graph_port warning
        ARM: pxa: ssp: unneeded to free devm_ allocated data
        ARM: dts: r8a7743: Convert to new LVDS DT bindings
        soc: fsl: qbman: avoid race in clearing QMan interrupt
        arm64: dts: renesas: r8a77965: Enable DMA for SCIF2
        arm64: dts: renesas: r8a7796: Enable DMA for SCIF2
        arm64: dts: renesas: r8a774a1: Enable DMA for SCIF2
        ARM: dts: da850: fix interrupt numbers for clocksource
        dt-bindings: imx8mq: Number clocks consecutively
        arm64: dts: meson: Fix mmc cd-gpios polarity
        ARM: dts: imx6sx: correct backward compatible of gpt
        ARM: dts: imx: replace gpio-key,wakeup with wakeup-source property
        ARM: dts: vf610-bk4: fix incorrect #address-cells for dspi3
        ARM: dts: meson8m2: mxiii-plus: mark the SD card detection GPIO active-low
        ...
      46c291e2
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 5bb513ed
      Linus Torvalds authored
      Pull arm64 fixes from Will Deacon:
       "Two arm64 fixes for -rc6. They resolve a kernel NULL dereference in
        kexec and bogus kernel page table dumping when userspace is configured
        for 52-bit virtual addressing.
      
        Summary:
      
         - Fix kernel oops when attemping kexec_file() with a NULL cmdline
      
         - Fix page table output in debugfs when ARM64_USER_VA_BITS_52=y"
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: kexec_file: handle empty command-line
        arm64: ptdump: Don't iterate kernel page tables using PTRS_PER_PXX
      5bb513ed
    • Linus Torvalds's avatar
      Merge tag 'powerpc-5.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 820828bf
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
       "Just two fixes, both going to stable.
      
         - Our support for split pmd page table lock had a bug which could
           lead to a crash on mremap() when using the Radix MMU (Power9 only).
      
         - A fix for the PAPR SCM driver (nvdimm) we added last release, which
           had a bug where we might mis-handle a hypervisor response leading
           to us failing to attach the memory region.
      
        Thanks to: Aneesh Kumar K.V, Oliver O'Halloran"
      
      * tag 'powerpc-5.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc/papr_scm: Use the correct bind address
        powerpc/radix: Fix kernel crash with mremap()
      820828bf
  5. 08 Feb, 2019 11 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace · 6b2912ce
      Linus Torvalds authored
      Pull signal fixes from Eric Biederman:
       "This contains four small fixes for signal handling. A missing range
        check, a regression fix, prioritizing signals we have already started
        a signal group exit for, and better detection of synchronous signals.
      
        The confused decision of which signals to handle failed spectacularly
        when a timer was pointed at SIGBUS and the stack overflowed. Resulting
        in an unkillable process in an infinite loop instead of a SIGSEGV and
        core dump"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
        signal: Better detection of synchronous signals
        signal: Always notice exiting tasks
        signal: Always attempt to allocate siginfo for SIGSTOP
        signal: Make siginmask safe when passed a signal of 0
      6b2912ce
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 3b6e8204
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "This is a set of five minor fixes (although, tecnhincally, the aicxxx
        fix is for a major problem in that the driver won't load without it,
        but I think the fact it's taken us since 4.10 to discover this
        indicates that the user base for these things has declined)"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: cxlflash: Prevent deadlock when adapter probe fails
        Revert "scsi: libfc: Add WARN_ON() when deleting rports"
        scsi: sd_zbc: Fix zone information messages
        scsi: target: make the pi_prot_format ConfigFS path readable
        scsi: aic94xx: fix module loading
      3b6e8204
    • Linus Torvalds's avatar
      Merge tag 'iommu-fixes-v5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu · 2e277fa0
      Linus Torvalds authored
      Pull IOMMU fix from Joerg Roedel:
       "Intel decided to leave the newly added Scalable Mode Feature
        default-disabled for now. The patch here accomplishes that"
      
      * tag 'iommu-fixes-v5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
        iommu/vt-d: Leave scalable mode default off
      2e277fa0
    • Linus Torvalds's avatar
      Merge tag 'pci-v5.0-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci · 70be9ac2
      Linus Torvalds authored
      Pull PCI fix from Bjorn Helgaas:
       "Work around Synopsys duplicate Device ID (HAPS USB3, NXP i.MX) that
        breaks PCIe on I.MX SoCs (Thinh Nguyen)"
      
      * tag 'pci-v5.0-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
        PCI: Work around Synopsys duplicate Device ID (HAPS USB3, NXP i.MX)
      70be9ac2
    • Linus Torvalds's avatar
      Merge tag 'acpi-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · e2dac603
      Linus Torvalds authored
      Pull ACPI fix from Rafael Wysocki:
       "This prevents excessive ACPI debug messages from being printed to the
        kernel log, which has started to happen after one of the recent ACPICA
        commits (Erik Schmauss)"
      
      * tag 'acpi-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        ACPI: Set debug output flags independent of ACPICA
      e2dac603
    • Andrew Lunn's avatar
      MAINTAINERS: Update the ocores i2c bus driver maintainer, etc · 13c80dda
      Andrew Lunn authored
      The listed maintainer has not been responding to emails for a while.
      Add myself as a second maintainer.
      
      Add the platform data include file, which was not listed.
      Signed-off-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
      13c80dda
    • Liu Bo's avatar
      blk-mq: remove duplicated definition of blk_mq_freeze_queue · 26984841
      Liu Bo authored
      As the prototype has been defined in "include/linux/blk-mq.h", the one
      in "block/blk-mq.h" can be removed then.
      Signed-off-by: default avatarLiu Bo <bo.liu@linux.alibaba.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      26984841
    • Liu Bo's avatar
      Blk-iolatency: warn on negative inflight IO counter · 391f552a
      Liu Bo authored
      This is to catch any unexpected negative value of inflight IO counter.
      Signed-off-by: default avatarLiu Bo <bo.liu@linux.alibaba.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      391f552a
    • Liu Bo's avatar
      blk-iolatency: fix IO hang due to negative inflight counter · 8c772a9b
      Liu Bo authored
      Our test reported the following stack, and vmcore showed that
      ->inflight counter is -1.
      
      [ffffc9003fcc38d0] __schedule at ffffffff8173d95d
      [ffffc9003fcc3958] schedule at ffffffff8173de26
      [ffffc9003fcc3970] io_schedule at ffffffff810bb6b6
      [ffffc9003fcc3988] blkcg_iolatency_throttle at ffffffff813911cb
      [ffffc9003fcc3a20] rq_qos_throttle at ffffffff813847f3
      [ffffc9003fcc3a48] blk_mq_make_request at ffffffff8137468a
      [ffffc9003fcc3b08] generic_make_request at ffffffff81368b49
      [ffffc9003fcc3b68] submit_bio at ffffffff81368d7d
      [ffffc9003fcc3bb8] ext4_io_submit at ffffffffa031be00 [ext4]
      [ffffc9003fcc3c00] ext4_writepages at ffffffffa03163de [ext4]
      [ffffc9003fcc3d68] do_writepages at ffffffff811c49ae
      [ffffc9003fcc3d78] __filemap_fdatawrite_range at ffffffff811b6188
      [ffffc9003fcc3e30] filemap_write_and_wait_range at ffffffff811b6301
      [ffffc9003fcc3e60] ext4_sync_file at ffffffffa030cee8 [ext4]
      [ffffc9003fcc3ea8] vfs_fsync_range at ffffffff8128594b
      [ffffc9003fcc3ee8] do_fsync at ffffffff81285abd
      [ffffc9003fcc3f18] sys_fsync at ffffffff81285d50
      [ffffc9003fcc3f28] do_syscall_64 at ffffffff81003c04
      [ffffc9003fcc3f50] entry_SYSCALL_64_after_swapgs at ffffffff81742b8e
      
      The ->inflight counter may be negative (-1) if
      
      1) blk-iolatency was disabled when the IO was issued,
      
      2) blk-iolatency was enabled before this IO reached its endio,
      
      3) the ->inflight counter is decreased from 0 to -1 in endio()
      
      In fact the hang can be easily reproduced by the below script,
      
      H=/sys/fs/cgroup/unified/
      P=/sys/fs/cgroup/unified/test
      
      echo "+io" > $H/cgroup.subtree_control
      mkdir -p $P
      
      echo $$ > $P/cgroup.procs
      
      xfs_io -f -d -c "pwrite 0 4k" /dev/sdg
      
      echo "`cat /sys/block/sdg/dev` target=1000000" > $P/io.latency
      
      xfs_io -f -d -c "pwrite 0 4k" /dev/sdg
      
      This fixes the problem by freezing the queue so that while
      enabling/disabling iolatency, there is no inflight rq running.
      
      Note that quiesce_queue is not needed as this only updating iolatency
      configuration about which dispatching request_queue doesn't care.
      Signed-off-by: default avatarLiu Bo <bo.liu@linux.alibaba.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      8c772a9b
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 27b4ad62
      Linus Torvalds authored
      Pull networking fixes from David Miller:
       "This pull request is dedicated to the upcoming snowpocalypse parts 2
        and 3 in the Pacific Northwest:
      
         1) Drop profiles are broken because some drivers use dev_kfree_skb*
            instead of dev_consume_skb*, from Yang Wei.
      
         2) Fix IWLWIFI kconfig deps, from Luca Coelho.
      
         3) Fix percpu maps updating in bpftool, from Paolo Abeni.
      
         4) Missing station release in batman-adv, from Felix Fietkau.
      
         5) Fix some networking compat ioctl bugs, from Johannes Berg.
      
         6) ucc_geth must reset the BQL queue state when stopping the device,
            from Mathias Thore.
      
         7) Several XDP bug fixes in virtio_net from Toshiaki Makita.
      
         8) TSO packets must be sent always on queue 0 in stmmac, from Jose
            Abreu.
      
         9) Fix socket refcounting bug in RDS, from Eric Dumazet.
      
        10) Handle sparse cpu allocations in bpf selftests, from Martynas
            Pumputis.
      
        11) Make sure mgmt frames have enough tailroom in mac80211, from Felix
            Feitkau.
      
        12) Use safe list walking in sctp_sendmsg() asoc list traversal, from
            Greg Kroah-Hartman.
      
        13) Make DCCP's ccid_hc_[rt]x_parse_options always check for NULL
            ccid, from Eric Dumazet.
      
        14) Need to reload WoL password into bcmsysport device after deep
            sleeps, from Florian Fainelli.
      
        15) Remove filter from mask before freeing in cls_flower, from Petr
            Machata.
      
        16) Missing release and use after free in error paths of s390 qeth
            code, from Julian Wiedmann.
      
        17) Fix lockdep false positive in dsa code, from Marc Zyngier.
      
        18) Fix counting of ATU violations in mv88e6xxx, from Andrew Lunn.
      
        19) Fix EQ firmware assert in qed driver, from Manish Chopra.
      
        20) Don't default Caivum PTP to Y in kconfig, from Bjorn Helgaas"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (116 commits)
        net: dsa: b53: Fix for failure when irq is not defined in dt
        sit: check if IPv6 enabled before calling ip6_err_gen_icmpv6_unreach()
        geneve: should not call rt6_lookup() when ipv6 was disabled
        net: Don't default Cavium PTP driver to 'y'
        net: broadcom: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
        net: via-velocity: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
        net: tehuti: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
        net: sun: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
        net: fsl_ucc_hdlc: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
        net: fec_mpc52xx: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
        net: smsc: epic100: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
        net: dscc4: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
        net: tulip: de2104x: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
        net: defxx: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
        net/mlx5e: Don't overwrite pedit action when multiple pedit used
        net/mlx5e: Update hw flows when encap source mac changed
        qed*: Advance drivers version to 8.37.0.20
        qed: Change verbosity for coalescing message.
        qede: Fix system crash on configuring channels.
        qed: Consider TX tcs while deriving the max num_queues for PF.
        ...
      27b4ad62
    • Linus Torvalds's avatar
      Merge tag 'char-misc-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · 68090543
      Linus Torvalds authored
      Pull char/misc fixes from Greg KH:
       "Here are some small char and misc driver fixes for 5.0-rc6.
      
        Nothing huge here, some more binderfs fixups found as people use it,
        and there is a "large" selftest added to validate the binderfs code,
        which makes up the majority of this pull request.
      
        There's also some small mei and mic fixes to resolve some reported
        issues.
      
        All of these have been in linux-next for over a week with no reported
        issues"
      
      * tag 'char-misc-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        mic: vop: Fix crash on remove
        mic: vop: Fix use-after-free on remove
        binderfs: remove separate device_initcall()
        fpga: stratix10-soc: fix wrong of_node_put() in init function
        mic: vop: Fix broken virtqueues
        mei: free read cb on ctrl_wr list flush
        samples: mei: use /dev/mei0 instead of /dev/mei
        mei: me: add ice lake point device id.
        binderfs: respect limit on binder control creation
        binder: fix CONFIG_ANDROID_BINDER_DEVICES
        selftests: add binderfs selftests
      68090543