1. 01 Aug, 2019 1 commit
    • Jiri Olsa's avatar
      perf bench numa: Fix cpu0 binding · 6bbfe4e6
      Jiri Olsa authored
      Michael reported an issue with perf bench numa failing with binding to
      cpu0 with '-0' option.
      
        # perf bench numa mem -p 3 -t 1 -P 512 -s 100 -zZcm0 --thp 1 -M 1 -ddd
        # Running 'numa/mem' benchmark:
      
         # Running main, "perf bench numa numa-mem -p 3 -t 1 -P 512 -s 100 -zZcm0 --thp 1 -M 1 -ddd"
        binding to node 0, mask: 0000000000000001 => -1
        perf: bench/numa.c:356: bind_to_memnode: Assertion `!(ret)' failed.
        Aborted (core dumped)
      
      This happens when the cpu0 is not part of node0, which is the benchmark
      assumption and we can see that's not the case for some powerpc servers.
      
      Using correct node for cpu0 binding.
      Reported-by: default avatarMichael Petlan <mpetlan@redhat.com>
      Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
      Link: http://lkml.kernel.org/r/20190801142642.28004-1-jolsa@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      6bbfe4e6
  2. 29 Jul, 2019 14 commits
    • Ingo Molnar's avatar
      Merge tag 'perf-urgent-for-mingo-5.3-20190729' of... · b3c303be
      Ingo Molnar authored
      Merge tag 'perf-urgent-for-mingo-5.3-20190729' 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 header:
      
        Vince Weaver:
      
        - Fix divide by zero error if f_header.attr_size==0, found using a perf tool fuzzer.
      
        Numfor Mbiziwo-Tiapo:
      
        - Silence use of uninitialized value warning pointed out by clang's MSAN tool.
      
      libbpf:
      
        Andrii Nakryiko:
      
        - Fix missing __WORDSIZE definition in some systems, such as musl libc (Alpine Linux).
      
      tools header UAPI:
      
        Arnaldo Carvalho de Melo:
      
        - Sync headers to address perf build warnings:
      
          - syscalls_64.tbl and generic unistd.h to pick up clone3 and pidfd_open.
      
          - With new ioctls: kvm.h, drm.h and usbdevice_fs.h.
      
          - No tooling change: mman.h, sched.h and if_link.h.
      
      Documentation:
      
        Vince Weaver:
      
        - Fix perf.data documentation units for memory size, its kB, not bytes.
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      b3c303be
    • Linus Torvalds's avatar
      Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost · 2a11c76e
      Linus Torvalds authored
      Pull virtio/vhost fixes from Michael Tsirkin:
      
       - Fixes in the iommu and balloon devices.
      
       - Disable the meta-data optimization for now - I hope we can get it
         fixed shortly, but there's no point in making users suffer crashes
         while we are working on that.
      
      * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
        vhost: disable metadata prefetch optimization
        iommu/virtio: Update to most recent specification
        balloon: fix up comments
        mm/balloon_compaction: avoid duplicate page removal
      2a11c76e
    • Linus Torvalds's avatar
      Merge tag 'platform-drivers-x86-v5.3-3' of git://git.infradead.org/linux-platform-drivers-x86 · 45aee68e
      Linus Torvalds authored
      Pull x86 platform driver fixes from Andy Shevchenko:
       "Business as usual, a few fixes and new IDs:
      
         - PC Engines APU got one fix for software dependencies to
           automatically load them and another fix for mapping of key button
           in the front to issue restart event.
      
         - OLPC driver is now probed automatically based on module device
           table.
      
         - Intel PMC core driver supports Intel Ice Lake NNPI processor.
      
         - WMI driver missed description of a new field in the structure that
           has been added"
      
      * tag 'platform-drivers-x86-v5.3-3' of git://git.infradead.org/linux-platform-drivers-x86:
        platform/x86: pcengines-apuv2: use KEY_RESTART for front button
        platform/x86: intel_pmc_core: Add ICL-NNPI support to PMC Core
        Platform: OLPC: add SPI MODULE_DEVICE_TABLE
        platform/x86: wmi: add missing struct parameter description
        platform/x86: pcengines-apuv2: Fix softdep statement
      45aee68e
    • Enrico Weigelt's avatar
      platform/x86: pcengines-apuv2: use KEY_RESTART for front button · f14312a9
      Enrico Weigelt authored
      The keycode KEY_RESTART is more appropriate for the front button,
      as most people use it for things like restart or factory reset.
      Signed-off-by: default avatarEnrico Weigelt <info@metux.net>
      Fixes: f8eb0235 ("x86: pcengines apuv2 gpio/leds/keys platform driver")
      Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
      f14312a9
    • Andrii Nakryiko's avatar
      libbpf: fix missing __WORDSIZE definition · 8aa259b1
      Andrii Nakryiko authored
      hashmap.h depends on __WORDSIZE being defined. It is defined by
      glibc/musl in different headers. It's an explicit goal for musl to be
      "non-detectable" at compilation time, so instead include glibc header if
      glibc is explicitly detected and fall back to musl header otherwise.
      Reported-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      Signed-off-by: default avatarAndrii Nakryiko <andriin@fb.com>
      Tested-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Alexei Starovoitov <ast@fb.com>
      Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>
      Cc: Daniel Borkmann <daniel@iogearbox.net>
      Fixes: e3b92422 ("libbpf: add resizable non-thread safe internal hashmap")
      Link: https://lkml.kernel.org/r/20190718173021.2418606-1-andriin@fb.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      8aa259b1
    • Vince Weaver's avatar
      perf tools: Fix perf.data documentation units for memory size · 2e9a06dd
      Vince Weaver authored
      The perf.data-file-format documentation incorrectly says the
      HEADER_TOTAL_MEM results are in bytes.  The results are in kilobytes
      (perf reads the value from /proc/meminfo)
      Signed-off-by: default avatarVince Weaver <vincent.weaver@maine.edu>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Link: http://lkml.kernel.org/r/alpine.DEB.2.21.1907251155500.22624@macbook-airSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      2e9a06dd
    • Numfor Mbiziwo-Tiapo's avatar
      perf header: Fix use of unitialized value warning · 20f9781f
      Numfor Mbiziwo-Tiapo authored
      When building our local version of perf with MSAN (Memory Sanitizer) and
      running the perf record command, MSAN throws a use of uninitialized
      value warning in "tools/perf/util/util.c:333:6".
      
      This warning stems from the "buf" variable being passed into "write".
      It originated as the variable "ev" with the type union perf_event*
      defined in the "perf_event__synthesize_attr" function in
      "tools/perf/util/header.c".
      
      In the "perf_event__synthesize_attr" function they allocate space with a malloc
      call using ev, then go on to only assign some of the member variables before
      passing "ev" on as a parameter to the "process" function therefore "ev"
      contains uninitialized memory. Changing the malloc call to zalloc to initialize
      all the members of "ev" which gets rid of the warning.
      
      To reproduce this warning, build perf by running:
      make -C tools/perf CLANG=1 CC=clang EXTRA_CFLAGS="-fsanitize=memory\
       -fsanitize-memory-track-origins"
      
      (Additionally, llvm might have to be installed and clang might have to
      be specified as the compiler - export CC=/usr/bin/clang)
      
      then running:
      tools/perf/perf record -o - ls / | tools/perf/perf --no-pager annotate\
       -i - --stdio
      
      Please see the cover letter for why false positive warnings may be
      generated.
      Signed-off-by: default avatarNumfor Mbiziwo-Tiapo <nums@google.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Mark Drayton <mbd@fb.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Song Liu <songliubraving@fb.com>
      Cc: Stephane Eranian <eranian@google.com>
      Link: http://lkml.kernel.org/r/20190724234500.253358-2-nums@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      20f9781f
    • Vince Weaver's avatar
      perf header: Fix divide by zero error if f_header.attr_size==0 · 7622236c
      Vince Weaver authored
      So I have been having lots of trouble with hand-crafted perf.data files
      causing segfaults and the like, so I have started fuzzing the perf tool.
      
      First issue found:
      
      If f_header.attr_size is 0 in the perf.data file, then perf will crash
      with a divide-by-zero error.
      
      Committer note:
      
      Added a pr_err() to tell the user why the command failed.
      Signed-off-by: default avatarVince Weaver <vincent.weaver@maine.edu>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Link: http://lkml.kernel.org/r/alpine.DEB.2.21.1907231100440.14532@macbook-airSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      7622236c
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Sync if_link.h with the kernel · e54599c9
      Arnaldo Carvalho de Melo authored
      To pick the changes in:
      
        07a4ddec ("bonding: add an option to specify a delay between peer notifications")
      
      And silence this build warning:
      
        Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h'
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: David S. Miller <davem@davemloft.net>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Vincent Bernat <vincent@bernat.ch>
      Link: https://lkml.kernel.org/n/tip-3liw4exxh8goc0rq9xryl2kv@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      e54599c9
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Sync sched.h with the kernel · c093de6b
      Arnaldo Carvalho de Melo authored
      To get the changes in:
      
        a509a7cd ("sched/uclamp: Extend sched_setattr() to support utilization clamping")
        1d6362fa ("sched/core: Allow sched_setattr() to use the current policy")
        7f192e3c ("fork: add clone3")
      
      And silence this perf build warning:
      
        Warning: Kernel ABI header at 'tools/include/uapi/linux/sched.h' differs from latest version at 'include/uapi/linux/sched.h'
        diff -u tools/include/uapi/linux/sched.h include/uapi/linux/sched.h
      
      No changes in tools/ due to the above.
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Christian Brauner <christian@brauner.io>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Patrick Bellasi <patrick.bellasi@arm.com>
      Link: https://lkml.kernel.org/n/tip-mtrpsjrux5hgyr5uf8l1aa46@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      c093de6b
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Sync usbdevice_fs.h with the kernels to get new ioctl · 0f58163c
      Arnaldo Carvalho de Melo authored
      To get the changes in:
      
        6d101f24 ("USB: add usbfs ioctl to retrieve the connection parameters")
      
      And address this perf build warning:
      
        Warning: Kernel ABI header at 'tools/include/uapi/linux/usbdevice_fs.h' differs from latest version at 'include/uapi/linux/usbdevice_fs.h'
        diff -u tools/include/uapi/linux/usbdevice_fs.h include/uapi/linux/usbdevice_fs.h
      
      Which ends up autogenerating a ioctl_cmd->string table used by 'perf
      trace':
      
        $ tools/perf/trace/beauty/usbdevfs_ioctl.sh > before
        $ cp include/uapi/linux/usbdevice_fs.h tools/include/uapi/linux/usbdevice_fs.h
        $ tools/perf/trace/beauty/usbdevfs_ioctl.sh > after
        $ diff -u before after
        --- before 2019-07-26 15:26:55.513636844 -0300
        +++ after 2019-07-26 15:29:11.650518677 -0300
        @@ -23,6 +23,7 @@
                [2] = "BULK",
                [30] = "DROP_PRIVILEGES",
                [31] = "GET_SPEED",
        +       [32] = "CONNINFO_EX",
                [3] = "RESETEP",
                [4] = "SETINTERFACE",
                [5] = "SETCONFIGURATION",
        $
      
      Now 'perf trace' ioctl beautifier will translate this new ioctl to a
      string and at some point will allow filtering the 'ioctl' syscall with
      something like this in a system wide strace-like sessin:
      
        # perf trace -e ioctl/cmd=USBDEVFS_CONNINFO_EX/
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Link: https://lkml.kernel.org/n/tip-tkdfbgzqypwco96b309c0ovd@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0f58163c
    • Arnaldo Carvalho de Melo's avatar
      tools perf beauty: Fix usbdevfs_ioctl table generator to handle _IOC() · 7ee52615
      Arnaldo Carvalho de Melo authored
      In addition to _IOW() and _IOR(), to handle this case:
      
        #define USBDEVFS_CONNINFO_EX(len)  _IOC(_IOC_READ, 'U', 32, len)
      
      That will happen in the next sync of this header file.
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Link: https://lkml.kernel.org/n/tip-3br5e4t64e4lp0goo84che3s@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      7ee52615
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Update tools's copy of drm.h headers · 95dc663a
      Arnaldo Carvalho de Melo authored
      Picking the changes from:
      
        c5d3e39c ("drm/i915: Engine discovery query")
        a88b6e4c ("drm/i915: Allow specification of parallel execbuf")
        ee113690 ("drm/i915/execlists: Virtual engine bonding")
        6d06779e ("drm/i915: Load balancing across a virtual engine")
        b81dde71 ("drm/i915: Allow userspace to clone contexts on creation")
        8319f44c ("drm/i915: Re-expose SINGLE_TIMELINE flags for context creation")
        e620f7b3 ("drm/i915: Extend I915_CONTEXT_PARAM_SSEU to support local ctx->engine[]")
        976b55f0 ("drm/i915: Allow a context to define its set of engines")
        7f3f317a ("drm/i915: Restore control over ppgtt for context creation ABI")
        75b3f1cb ("drm: Fix drm.h uapi header for GNU/kFreeBSD")
      
      Silencing these perf build warnings:
      
        Warning: Kernel ABI header at 'tools/include/uapi/drm/drm.h' differs from latest version at 'include/uapi/drm/drm.h'
        diff -u tools/include/uapi/drm/drm.h include/uapi/drm/drm.h
        Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
        diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
      
      Now 'perf trace' and other code that might use the tools/perf/trace/beauty autogenerated
      tables will be able to translate this new ioctl code into a string:
      
        $ tools/perf/trace/beauty/drm_ioctl.sh > before
        $ cp include/uapi/drm/i915_drm.h tools/include/uapi/drm/i915_drm.h
        $ tools/perf/trace/beauty/drm_ioctl.sh > after
        $ diff -u before after
        --- before 2019-07-26 13:02:22.052723640 -0300
        +++ after 2019-07-26 13:02:35.354906036 -0300
        @@ -163,4 +163,6 @@
                [DRM_COMMAND_BASE + 0x37] = "I915_PERF_ADD_CONFIG",
                [DRM_COMMAND_BASE + 0x38] = "I915_PERF_REMOVE_CONFIG",
                [DRM_COMMAND_BASE + 0x39] = "I915_QUERY",
        +       [DRM_COMMAND_BASE + 0x3a] = "I915_GEM_VM_CREATE",
        +       [DRM_COMMAND_BASE + 0x3b] = "I915_GEM_VM_DESTROY",
         };
        $
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: Eric Anholt <eric@anholt.net>
      Cc: James Clarke <jrtc27@jrtc27.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
      Link: https://lkml.kernel.org/n/tip-a9173whgu3h1vo24jgdg5do8@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      95dc663a
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Update tools's copy of mman.h headers · b830f94f
      Arnaldo Carvalho de Melo authored
      To pick up the changes from:
      
        8aa3c927 ("mm/mmap: move common defines to mman-common.h")
        22fcea6f ("mm: move MAP_SYNC to asm-generic/mman-common.h")
        0bf5f949 ("mm: fix the MAP_UNINITIALIZED flag")
      
      To address the following perf build warnings:
      
        Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/mman-common.h' differs from latest version at 'include/uapi/asm-generic/mman-common.h'
        diff -u tools/include/uapi/asm-generic/mman-common.h include/uapi/asm-generic/mman-common.h
        Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/mman.h' differs from latest version at 'include/uapi/asm-generic/mman.h'
        diff -u tools/include/uapi/asm-generic/mman.h include/uapi/asm-generic/mman.h
      
      That ends up just moving a bit the auto-generated code->string tables:
      
        $ tools/perf/trace/beauty/mmap_flags.sh > before
        $ cp include/uapi/asm-generic/mman.h tools/include/uapi/asm-generic/mman.h
        $ cp include/uapi/asm-generic/mman-common.h tools/include/uapi/asm-generic/mman-common.h
        $ tools/perf/trace/beauty/mmap_flags.sh > after
        $ diff -u before after
        --- before 2019-07-26 12:45:02.948335904 -0300
        +++ after 2019-07-26 12:48:05.342893539 -0300
        @@ -4,15 +4,15 @@
                [ilog2(0x02) + 1] = "PRIVATE",
                [ilog2(0x10) + 1] = "FIXED",
                [ilog2(0x20) + 1] = "ANONYMOUS",
        +       [ilog2(0x008000) + 1] = "POPULATE",
        +       [ilog2(0x010000) + 1] = "NONBLOCK",
        +       [ilog2(0x020000) + 1] = "STACK",
        +       [ilog2(0x040000) + 1] = "HUGETLB",
        +       [ilog2(0x080000) + 1] = "SYNC",
                [ilog2(0x100000) + 1] = "FIXED_NOREPLACE",
                [ilog2(0x0100) + 1] = "GROWSDOWN",
                [ilog2(0x0800) + 1] = "DENYWRITE",
                [ilog2(0x1000) + 1] = "EXECUTABLE",
                [ilog2(0x2000) + 1] = "LOCKED",
                [ilog2(0x4000) + 1] = "NORESERVE",
        -       [ilog2(0x8000) + 1] = "POPULATE",
        -       [ilog2(0x10000) + 1] = "NONBLOCK",
        -       [ilog2(0x20000) + 1] = "STACK",
        -       [ilog2(0x40000) + 1] = "HUGETLB",
        -       [ilog2(0x80000) + 1] = "SYNC",
         };
        $
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Link: https://lkml.kernel.org/n/tip-fzqvzni9megaurmsp0k4vy27@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      b830f94f
  3. 28 Jul, 2019 13 commits
    • Linus Torvalds's avatar
      Linux 5.3-rc2 · 609488bc
      Linus Torvalds authored
      609488bc
    • Linus Torvalds's avatar
      Merge tag 'meminit-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux · c622fc5f
      Linus Torvalds authored
      Pull structleak fix from Kees Cook:
       "Disable gcc-based stack variable auto-init under KASAN (Arnd
        Bergmann).
      
        This fixes a bunch of build warnings under KASAN and the
        gcc-plugin-based stack auto-initialization features (which are
        arguably redundant, so better to let KASAN control this)"
      
      * tag 'meminit-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
        structleak: disable STRUCTLEAK_BYREF in combination with KASAN_STACK
      c622fc5f
    • Linus Torvalds's avatar
      Merge tag 'kbuild-fixes-v5.3' of... · 8e61ea11
      Linus Torvalds authored
      Merge tag 'kbuild-fixes-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
      
      Pull Kbuild fixes from Masahiro Yamada:
      
       - add compile_commands.json to .gitignore
      
       - fix false-positive warning from gen_compile_commands.py after
         allnoconfig build
      
       - remove unused code
      
      * tag 'kbuild-fixes-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
        kbuild: remove unused single-used-m
        gen_compile_commands: lower the entry count threshold
        .gitignore: Add compilation database file
        kbuild: remove unused objectify macro
      8e61ea11
    • Linus Torvalds's avatar
      Merge tag 'char-misc-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · 04ce9318
      Linus Torvalds authored
      Pull char/misc driver fixes from Greg KH:
       "Here are some small char and misc driver fixes for 5.3-rc2 to resolve
        some reported issues.
      
        Nothing major at all, some binder bugfixes for issues found, some new
        mei device ids, firmware building warning fixes, habanalabs fixes, a
        few other build fixes, and a MAINTAINERS update.
      
        All of these have been in linux-next with no reported issues"
      
      * tag 'char-misc-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        test_firmware: fix a memory leak bug
        hpet: Fix division by zero in hpet_time_div()
        eeprom: make older eeprom drivers select NVMEM_SYSFS
        vmw_balloon: Remove Julien from the maintainers list
        fpga-manager: altera-ps-spi: Fix build error
        mei: me: add mule creek canyon (EHL) device ids
        binder: prevent transactions to context manager from its own process.
        binder: Set end of SG buffer area properly.
        firmware: Fix missing inline
        firmware: fix build errors in paged buffer handling code
        habanalabs: don't reset device when getting VRHOT
        habanalabs: use %pad for printing a dma_addr_t
      04ce9318
    • Linus Torvalds's avatar
      Merge tag 'tty-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · 572782b2
      Linus Torvalds authored
      Pull tty fixes from Greg KH:
       "Here are two tty/vt fixes:
      
         - delete the netx-serial driver as the arch has been removed, no need
           to keep the serial driver for it around either.
      
         - vt console_lock fix to resolve a reported noisy warning at runtime
      
        Both of these have been in linux-next with no reported issues"
      
      * tag 'tty-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        vt: Grab console_lock around con_is_bound in show_bind
        tty: serial: netx: Delete driver
      572782b2
    • Linus Torvalds's avatar
      Merge tag 'spdx-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx · ad28fd1c
      Linus Torvalds authored
      Pull SPDX fixes from Greg KH:
       "Here are some small SPDX fixes for 5.3-rc2 for things that came in
        during the 5.3-rc1 merge window that we previously missed.
      
        Only three small patches here:
      
         - two uapi patches to resolve some SPDX tags that were not correct
      
         - fix an invalid SPDX tag in the iomap Makefile file
      
        All have been properly reviewed on the public mailing lists"
      
      * tag 'spdx-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
        iomap: fix Invalid License ID
        treewide: remove SPDX "WITH Linux-syscall-note" from kernel-space headers again
        treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers
      ad28fd1c
    • Linus Torvalds's avatar
      Merge tag 'usb-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 29af915c
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here are some small fixes for 5.3-rc2. All of these resolve some
        reported issues, some more than others :)
      
        Included in here is:
      
         - xhci fix for an annoying issue with odd devices
      
         - reversion of some usb251xb patches that should not have been merged
      
         - usb pci quirk additions and fixups
      
         - usb storage fix
      
         - usb host controller error test fix
      
        All of these have been in linux-next with no reported issues"
      
      * tag 'usb-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
        xhci: Fix crash if scatter gather is used with Immediate Data Transfer (IDT).
        usb: usb251xb: Reallow swap-dx-lanes to apply to the upstream port
        Revert "usb: usb251xb: Add US port lanes inversion property"
        Revert "usb: usb251xb: Add US lanes inversion dts-bindings"
        usb: wusbcore: fix unbalanced get/put cluster_id
        usb/hcd: Fix a NULL vs IS_ERR() bug in usb_hcd_setup_local_mem()
        usb-storage: Add a limitation for blk_queue_max_hw_sectors()
        usb: pci-quirks: Minor cleanup for AMD PLL quirk
        usb: pci-quirks: Correct AMD PLL quirk detection
      29af915c
    • Linus Torvalds's avatar
      Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc · 5bb575bc
      Linus Torvalds authored
      Pull ARM SoC fixes from Olof Johansson:
       "Here's the first batch of fixes for this release cycle.
      
        Main diffstat here is the re-deletion of netx. I messed up and most
        likely didn't remove the files from the index when I test-merged this
        and saw conflicts, and from there on out 'git rerere' remembered the
        mistake and I missed checking it. Here it's done again as expected.
      
        Besides that:
      
         - A defconfig refresh + enabling of new drivers for u8500
      
         - i.MX fixlets for i2c/SAI/pinmux
      
         - sleep.S build fix for Davinci
      
         - Broadcom devicetree build/warning fix"
      
      * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
        ARM: defconfig: u8500: Add new drivers
        ARM: defconfig: u8500: Refresh defconfig
        ARM: dts: bcm: bcm47094: add missing #cells for mdio-bus-mux
        ARM: davinci: fix sleep.S build error on ARMv4
        arm64: dts: imx8mq: fix SAI compatible
        arm64: dts: imx8mm: Correct SAI3 RXC/TXFS pin's mux option #1
        ARM: dts: imx6ul: fix clock frequency property name of I2C buses
        ARM: Delete netx a second time
        ARM: dts: imx7ulp: Fix usb-phy unit address format
      5bb575bc
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · a9815a4f
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
       "A set of x86 fixes and functional updates:
      
         - Prevent stale huge I/O TLB mappings on 32bit. A long standing bug
           which got exposed by KPTI support for 32bit
      
         - Prevent bogus access_ok() warnings in arch_stack_walk_user()
      
         - Add display quirks for Lenovo devices which have height and width
           swapped
      
         - Add the missing CR2 fixup for 32 bit async pagefaults. Fallout of
           the CR2 bug fix series.
      
         - Unbreak handling of force enabled HPET by moving the 'is HPET
           counting' check back to the original place.
      
         - A more accurate check for running on a hypervisor platform in the
           MDS mitigation code. Not perfect, but more accurate than the
           previous one.
      
         - Update a stale and confusing comment vs. IRQ stacks"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/speculation/mds: Apply more accurate check on hypervisor platform
        x86/hpet: Undo the early counter is counting check
        x86/entry/32: Pass cr2 to do_async_page_fault()
        x86/irq/64: Update stale comment
        x86/sysfb_efi: Add quirks for some devices with swapped width and height
        x86/stacktrace: Prevent access_ok() warnings in arch_stack_walk_user()
        mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy()
        x86/mm: Sync also unmappings in vmalloc_sync_all()
        x86/mm: Check for pfn instead of page in vmalloc_sync_one()
      a9815a4f
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · e24ce84e
      Linus Torvalds authored
      Pull scheduler fixes from Thomas Gleixner:
       "Two fixes for the fair scheduling class:
      
         - Prevent freeing memory which is accessible by concurrent readers
      
         - Make the RCU annotations for numa groups consistent"
      
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched/fair: Use RCU accessors consistently for ->numa_group
        sched/fair: Don't free p->numa_faults with concurrent readers
      e24ce84e
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 750991f9
      Linus Torvalds authored
      Pull perf fixes from Thomas Gleixner:
       "A pile of perf related fixes:
      
        Kernel:
         - Fix SLOTS PEBS event constraints for Icelake CPUs
      
         - Add the missing mask bit to allow counting hardware generated
           prefetches on L3 for Icelake CPUs
      
         - Make the test for hypervisor platforms more accurate (as far as
           possible)
      
         - Handle PMUs correctly which override event->cpu
      
         - Yet another missing fallthrough annotation
      
        Tools:
           perf.data:
              - Fix loading of compressed data split across adjacent records
              - Fix buffer size setting for processing CPU topology perf.data
                header.
      
           perf stat:
              - Fix segfault for event group in repeat mode
              - Always separate "stalled cycles per insn" line, it was being
                appended to the "instructions" line.
      
           perf script:
              - Fix --max-blocks man page description.
              - Improve man page description of metrics.
              - Fix off by one in brstackinsn IPC computation.
      
           perf probe:
              - Avoid calling freeing routine multiple times for same pointer.
      
           perf build:
              - Do not use -Wshadow on gcc < 4.8, avoiding too strict warnings
                treated as errors, breaking the build"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf/x86/intel: Mark expected switch fall-throughs
        perf/core: Fix creating kernel counters for PMUs that override event->cpu
        perf/x86: Apply more accurate check on hypervisor platform
        perf/x86/intel: Fix invalid Bit 13 for Icelake MSR_OFFCORE_RSP_x register
        perf/x86/intel: Fix SLOTS PEBS event constraint
        perf build: Do not use -Wshadow on gcc < 4.8
        perf probe: Avoid calling freeing routine multiple times for same pointer
        perf probe: Set pev->nargs to zero after freeing pev->args entries
        perf session: Fix loading of compressed data split across adjacent records
        perf stat: Always separate stalled cycles per insn
        perf stat: Fix segfault for event group in repeat mode
        perf tools: Fix proper buffer size for feature processing
        perf script: Fix off by one in brstackinsn IPC computation
        perf script: Improve man page description of metrics
        perf script: Fix --max-blocks man page description
      750991f9
    • Linus Torvalds's avatar
      Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 431f288e
      Linus Torvalds authored
      Pull locking fixes from Thomas Gleixner:
       "A set of locking fixes:
      
         - Address the fallout of the rwsem rework. Missing ACQUIREs and a
           sanity check to prevent a use-after-free
      
         - Add missing checks for unitialized mutexes when mutex debugging is
           enabled.
      
         - Remove the bogus code in the generic SMP variant of
           arch_futex_atomic_op_inuser()
      
         - Fixup the #ifdeffery in lockdep to prevent compile warnings"
      
      * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        locking/mutex: Test for initialized mutex
        locking/lockdep: Clean up #ifdef checks
        locking/lockdep: Hide unused 'class' variable
        locking/rwsem: Add ACQUIRE comments
        tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop
        lcoking/rwsem: Add missing ACQUIRE to read_slowpath sleep loop
        locking/rwsem: Add missing ACQUIRE to read_slowpath exit when queue is empty
        locking/rwsem: Don't call owner_on_cpu() on read-owner
        futex: Cleanup generic SMP variant of arch_futex_atomic_op_inuser()
      431f288e
    • Linus Torvalds's avatar
      Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 13fbe991
      Linus Torvalds authored
      Pull objtool fix from Thomas Gleixner:
       "A single robustness fix for objtool to handle unbalanced CLAC
        invocations under all circumstances"
      
      * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        objtool: Improve UACCESS coverage
      13fbe991
  4. 27 Jul, 2019 10 commits
    • Linus Torvalds's avatar
      Merge tag 'Wimplicit-fallthrough-5.3-rc2' of... · 88c50834
      Linus Torvalds authored
      Merge tag 'Wimplicit-fallthrough-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
      
      Pull Wimplicit-fallthrough enablement from Gustavo A. R. Silva:
       "This marks switch cases where we are expecting to fall through, and
        globally enables the -Wimplicit-fallthrough option in the main
        Makefile.
      
        Finally, some missing-break fixes that have been tagged for -stable:
      
         - drm/amdkfd: Fix missing break in switch statement
      
         - drm/amdgpu/gfx10: Fix missing break in switch statement
      
        With these changes, we completely get rid of all the fall-through
        warnings in the kernel"
      
      * tag 'Wimplicit-fallthrough-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
        Makefile: Globally enable fall-through warning
        drm/i915: Mark expected switch fall-throughs
        drm/amd/display: Mark expected switch fall-throughs
        drm/amdkfd/kfd_mqd_manager_v10: Avoid fall-through warning
        drm/amdgpu/gfx10: Fix missing break in switch statement
        drm/amdkfd: Fix missing break in switch statement
        perf/x86/intel: Mark expected switch fall-throughs
        mtd: onenand_base: Mark expected switch fall-through
        afs: fsclient: Mark expected switch fall-throughs
        afs: yfsclient: Mark expected switch fall-throughs
        can: mark expected switch fall-throughs
        firewire: mark expected switch fall-throughs
      88c50834
    • Linus Torvalds's avatar
      Merge tag 's390-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · 43e317c1
      Linus Torvalds authored
      Pull s390 updates from Heiko Carstens:
      
       - Add ABI to kernel image file which allows e.g. the file utility to
         figure out the kernel version.
      
       - Wire up clone3 system call.
      
       - Add support for kasan bitops instrumentation.
      
       - uapi header cleanup: use __u{16,32,64} instead of uint{16,32,64}_t.
      
       - Provide proper ARCH_ZONE_DMA_BITS so the s390 DMA zone is correctly
         defined with 2 GB instead of the default value of 1 MB.
      
       - Farhan Ali leaves the group of vfio-ccw maintainers.
      
       - Various small vfio-ccw fixes.
      
       - Add missing locking for airq_areas array in virtio code.
      
       - Minor qdio improvements.
      
      * tag 's390-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
        MAINTAINERS: vfio-ccw: Remove myself as the maintainer
        s390/mm: use shared variables for sysctl range check
        virtio/s390: fix race on airq_areas[]
        s390/dma: provide proper ARCH_ZONE_DMA_BITS value
        s390/kasan: add bitops instrumentation
        s390/bitops: make test functions return bool
        s390: wire up clone3 system call
        kbuild: enable arch/s390/include/uapi/asm/zcrypt.h for uapi header test
        s390: use __u{16,32,64} instead of uint{16,32,64}_t in uapi header
        s390/hypfs: fix a typo in the name of a function
        s390/qdio: restrict QAOB usage to IQD unicast queues
        s390/qdio: add sanity checks to the fast-requeue path
        s390: enable detection of kernel version from bzImage
        Documentation: fix vfio-ccw doc
        vfio-ccw: Update documentation for csch/hsch
        vfio-ccw: Don't call cp_free if we are processing a channel program
        vfio-ccw: Set pa_nr to 0 if memory allocation fails for pa_iova_pfn
        vfio-ccw: Fix memory leak and don't call cp_free in cp_init
        vfio-ccw: Fix misleading comment when setting orb.cmd.c64
      43e317c1
    • Linus Torvalds's avatar
      Merge tag 'devicetree-fixes-for-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux · 5efbd937
      Linus Torvalds authored
      Pull Devicetree fixes from Rob Herring:
       "The nvmem changes would typically go thru Greg's tree, but they were
        missed in the merge window. [ Acked by Greg ]
      
        Summary:
      
         - Fix mismatches in $id values and actual filenames. Now checked by
           tools.
      
         - Convert nvmem binding to DT schema
      
         - Fix a typo in of_property_read_bool() kerneldoc
      
         - Remove some redundant description in al-fic interrupt-controller"
      
      * tag 'devicetree-fixes-for-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
        dt-bindings: Fix more $id value mismatches filenames
        dt-bindings: nvmem: SID: Fix the examples node names
        dt-bindings: nvmem: Add YAML schemas for the generic NVMEM bindings
        of: Fix typo in kerneldoc
        dt-bindings: interrupt-controller: al-fic: remove redundant binding
        dt-bindings: clk: allwinner,sun4i-a10-ccu: Correct path in $id
      5efbd937
    • Linus Torvalds's avatar
      Merge tag 'libnvdimm-fixes-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm · 523634db
      Linus Torvalds authored
      Pull libnvdimm fixes from Dan Williams:
       "A collection of locking and async operations fixes for v5.3-rc2. These
        had been soaking in a branch targeting the merge window, but missed
        due to a regression hunt. This fixed up version has otherwise been in
        -next this past week with no reported issues.
      
        In order to gain confidence in the locking changes the pull also
        includes a debug / instrumentation patch to enable lockdep coverage
        for libnvdimm subsystem operations that depend on the device_lock for
        exclusion. As mentioned in the changelog it is a hack, but it works
        and documents the locking expectations of the sub-system in a way that
        others can use lockdep to verify. The driver core touches got an ack
        from Greg.
      
        Summary:
      
         - Fix duplicate device_unregister() calls (multiple threads competing
           to do unregister work when scheduling device removal from a sysfs
           attribute of the self-same device).
      
         - Fix badblocks registration order bug. Ensure region badblocks are
           initialized in advance of namespace registration.
      
         - Fix a deadlock between the bus lock and probe operations.
      
         - Export device-core infrastructure to coordinate async operations
           via the device ->dead state.
      
         - Add device-core infrastructure to validate device_lock() usage with
           lockdep"
      
      * tag 'libnvdimm-fixes-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
        driver-core, libnvdimm: Let device subsystems add local lockdep coverage
        libnvdimm/bus: Fix wait_nvdimm_bus_probe_idle() ABBA deadlock
        libnvdimm/bus: Stop holding nvdimm_bus_list_mutex over __nd_ioctl()
        libnvdimm/bus: Prepare the nd_ioctl() path to be re-entrant
        libnvdimm/region: Register badblocks before namespaces
        libnvdimm/bus: Prevent duplicate device_unregister() calls
        drivers/base: Introduce kill_device()
      523634db
    • Masahiro Yamada's avatar
      kbuild: remove unused single-used-m · b25e8a23
      Masahiro Yamada authored
      This is unused since commit 9f69a496 ("kbuild: split out *.mod out
      of {single,multi}-used-m rules").
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      b25e8a23
    • Masahiro Yamada's avatar
      gen_compile_commands: lower the entry count threshold · cb36955a
      Masahiro Yamada authored
      Running gen_compile_commands.py after building the kernel with
      allnoconfig gave this:
      
      $ ./scripts/gen_compile_commands.py
      WARNING: Found 449 entries. Have you compiled the kernel?
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      cb36955a
    • Toru Komatsu's avatar
      .gitignore: Add compilation database file · 26c4c71b
      Toru Komatsu authored
      This file is used by clangd to use language server protocol.
      It can be generated at each compile using scripts/gen_compile_commands.py.
      Therefore it is different depending on the environment and should be
      ignored.
      Signed-off-by: default avatarToru Komatsu <k0ma@utam0k.jp>
      Reviewed-by: default avatarNick Desaulniers <ndesaulniers@google.com>
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      26c4c71b
    • Masahiro Yamada's avatar
      kbuild: remove unused objectify macro · b2eff092
      Masahiro Yamada authored
      Commit 415008af ("docs-rst: convert lsm from DocBook to ReST")
      removed the last users of this macro.
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      b2eff092
    • Linus Torvalds's avatar
      Merge tag 'for-linus-20190726-2' of git://git.kernel.dk/linux-block · 5168afe6
      Linus Torvalds authored
      Pull block DMA segment fix from Jens Axboe:
       "Here's the virtual boundary segment size fix"
      
      * tag 'for-linus-20190726-2' of git://git.kernel.dk/linux-block:
        block: fix max segment size handling in blk_queue_virt_boundary
      5168afe6
    • Linus Torvalds's avatar
      Merge tag 'selinux-pr-20190726' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux · 40233e7c
      Linus Torvalds authored
      Pull selinux fix from Paul Moore:
       "One small SELinux patch to add some proper bounds/overflow checking
        when adding a new sid/secid"
      
      * tag 'selinux-pr-20190726' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
        selinux: check sidtab limit before adding a new entry
      40233e7c
  5. 26 Jul, 2019 2 commits