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  1. 01 9月, 2021 8 次提交
    • J
      perf tools: Fix LLVM test failure when running in verbose mode · 792adb1a
      由 James Clark 提交于 
      A CI system might want to run all tests in verbose mode so that there is
enough information to diagnose issues. This LLVM test is the only test
that uses "-v" to signify to not skip the test if the preconditions
aren't met (LLVM isn't installed). This means that running the test in
verbose mode without LLVM installed causes a test failure.

For consistency with the other tests, remove this verbose/skip check. An
alternate solution would be to make _all_ tests not skip when run in
verbose mode, but I don't think that would be intuitive.

Also change the search_program() call to search_program_and_warn().
Previously the hint about installing LLVM was only printed by the actual
test because this check was skipped in verbose mode. To maintain the old
behaviour, the precondition check must also print the full warning.

Previous output:

  $ ./perf test llvm
  40: LLVM search and compile                                     :
  40.1: Basic BPF llvm compile                                    : Skip

  $ ./perf test -v llvm
  40: LLVM search and compile                                     :
  40.1: Basic BPF llvm compile                                    :
  --- start ---
  test child forked, pid 2085835
  ERROR:	unable to find clang.
  Hint:	Try to install latest clang/llvm to support BPF. Check your $PATH
  ...
  test child finished with -1
  ---- end ----
  LLVM search and compile subtest 1: FAILED!

New output (non verbose mode is identical, verbose changes from fail to
skip):

  $ ./perf test llvm
  40: LLVM search and compile                                     :
  40.1: Basic BPF llvm compile                                    : Skip

  $ ./perf test -v llvm
  40: LLVM search and compile                                     :
  40.1: Basic BPF llvm compile                                    :
  --- start ---
  test child forked, pid 2087680
  ERROR:	unable to find clang.
  Hint:	Try to install latest clang/llvm to support BPF. Check your $PATH
  ...
  No clang, skip this test
  test child finished with -2
  ---- end ----
  LLVM search and compile subtest 1: Skip
Signed-off-by: NJames Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: clang-built-linux@googlegroups.com
Link: http://lore.kernel.org/lkml/20210831145501.2135754-2-james.clark@arm.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      792adb1a
    • J
      perf tools: Refactor LLVM test warning for missing binary · a8a2d5c0
      由 James Clark 提交于 
      The same warning is duplicated in two places so refactor it into a
single function "search_program_and_warn". This will be used a third
time in a later commit.
Signed-off-by: NJames Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: clang-built-linux@googlegroups.com
Link: http://lore.kernel.org/lkml/20210831145501.2135754-1-james.clark@arm.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      a8a2d5c0
    • L
      perf auxtrace arm: Support compat_auxtrace_mmap__{read_head|write_tail} · 474b3f28
      由 Leo Yan 提交于 
      When the tool runs with compat mode on Arm platform, the kernel is in
64-bit mode and user space is in 32-bit mode; the user space can use
instructions "ldrd" and "strd" for 64-bit value atomicity.

This patch adds compat_auxtrace_mmap__{read_head|write_tail} for arm
building, it uses "ldrd" and "strd" instructions to ensure accessing
atomicity for aux head and tail.  The file arch/arm/util/auxtrace.c is
built for arm and arm64 building, these two functions are not needed for
arm64, so check the compiler macro "__arm__" to only include them for
arm building.
Signed-off-by: NLeo Yan <leo.yan@linaro.org>
Reviewed-by: NJames Clark <james.clark@arm.com>
Tested-by: NJames Clark <james.clark@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Russell King (oracle)" <linux@armlinux.org.uk>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20210829102238.19693-3-leo.yan@linaro.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      474b3f28
    • L
      perf auxtrace: Add compat_auxtrace_mmap__{read_head|write_tail} · bbc49f12
      由 Leo Yan 提交于 
      When perf runs in compat mode (kernel in 64-bit mode and the perf is in
32-bit mode), the 64-bit value atomicity in the user space cannot be
assured, E.g. on some architectures, the 64-bit value accessing is split
into two instructions, one is for the low 32-bit word accessing and
another is for the high 32-bit word.

This patch introduces weak functions compat_auxtrace_mmap__read_head()
and compat_auxtrace_mmap__write_tail(), as their naming indicates, when
perf tool works in compat mode, it uses these two functions to access
the AUX head and tail.  These two functions can allow the perf tool to
work properly in certain conditions, e.g. when perf tool works in
snapshot mode with only using AUX head pointer, or perf tool uses the
AUX buffer and the incremented tail is not bigger than 4GB.

When perf tool cannot handle the case when the AUX tail is bigger than
4GB, the function compat_auxtrace_mmap__write_tail() returns -1 and
tells the caller to bail out for the error.

These two functions are declared as weak attribute, this allows to
implement arch specific functions if any arch can support the 64-bit
value atomicity in compat mode.
Suggested-by: NAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NLeo Yan <leo.yan@linaro.org>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Russell King (oracle)" <linux@armlinux.org.uk>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20210829102238.19693-2-leo.yan@linaro.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      bbc49f12
    • I
      perf bpf: Fix memory leaks relating to BTF. · 298105b7
      由 Ian Rogers 提交于 
      BTF needs to be freed with btf__free().
Signed-off-by: NIan Rogers <irogers@google.com>
Reviewed-by: NKajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210826184833.408563-1-irogers@google.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      298105b7
    • J
      perf data: Correct -h output · 760f5e77
      由 Joshua Martinez 提交于 
      There is currently only 1 'perf data' command, but supporting extra
commands was breaking the help output. Simplify for now so that the help
output is correct.

Before:
$ perf data -h

 Usage: perf data [<common options>] <command> [<options>]

$ perf data
Usage:
        perf data [<common options>] <command> [<options>]

        Available commands:
         convert        - converts data file between formats

After:
$ perf data

 Usage: perf data convert [<options>]

    -f, --force           don't complain, do it
    -i, --input <file>    input file name
    -v, --verbose         be more verbose
        --all             Convert all events
        --to-ctf ...      Convert to CTF format
        --to-json ...     Convert to JSON format
        --tod             Convert time to wall clock time

$ perf data -h

 Usage: perf data convert [<options>]

    -f, --force           don't complain, do it
    -i, --input <file>    input file name
    -v, --verbose         be more verbose
        --all             Convert all events
        --to-ctf ...      Convert to CTF format
        --to-json ...     Convert to JSON format
        --tod             Convert time to wall clock time
Signed-off-by: NJoshua Martinez <joshuamart@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210824205829.52822-1-irogers@google.comSigned-off-by: NIan Rogers <irogers@google.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      760f5e77
    • C
      perf header: Fix spelling mistake "cant'" -> "can't" · cb5a2ebb
      由 Colin Ian King 提交于 
      There is a spelling mistake in a warning message. Fix it.
Signed-off-by: NColin King <colin.king@canonical.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: kernel-janitors@vger.kernel.org
Link: http://lore.kernel.org/lkml/20210826121801.13281-1-colin.king@canonical.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      cb5a2ebb
    • A
      perf dlfilters: Fix build on environments with a --sysroot gcc arg · e807ffe6
      由 Arnaldo Carvalho de Melo 提交于 
      Such as cross building on Android, so just add EXTRA_CFLAGS to the
dlfilters rules as it is where --sysroot= has been specified.
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/YS1JwIMTNNWcbGdT@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      e807ffe6
  3. 31 8月, 2021 4 次提交
  5. 30 8月, 2021 13 次提交
    • J
      perf tests: Fix *probe_vfs_getname.sh test failures · a05b4270
      由 James Clark 提交于 
      The commit 4d6101f5 ("perf probe: Clarify error message about
not finding kernel modules debuginfo") changed the error message "Failed
to find the path for kernel" to "Failed to find the path for the
kernel".

Update the regex so that the tests still skip rather than fail when
kernel debug symbols aren't present.
Signed-off-by: NJames Clark <james.clark@arm.com>
Acked-by: NNamhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Link: http://lore.kernel.org/lkml/20210825164259.833222-1-james.clark@arm.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      a05b4270
    • A
      perf bench inject-buildid: Handle writen() errors · edf7b4a2
      由 Arnaldo Carvalho de Melo 提交于 
      The build on fedora:35 and fedora:rawhide with clang is failing with:

  49    41.00 fedora:35                     : FAIL clang version 13.0.0 (Fedora 13.0.0~rc1-1.fc35)
    bench/inject-buildid.c:351:6: error: variable 'len' set but not used [-Werror,-Wunused-but-set-variable]
            u64 len = 0;
                ^
    1 error generated.
    make[3]: *** [/git/perf-5.14.0-rc7/tools/build/Makefile.build:139: bench] Error 2
  50    41.11 fedora:rawhide                : FAIL clang version 13.0.0 (Fedora 13.0.0~rc1-1.fc35)
    bench/inject-buildid.c:351:6: error: variable 'len' set but not used [-Werror,-Wunused-but-set-variable]
            u64 len = 0;
                ^
    1 error generated.
    make[3]: *** [/git/perf-5.14.0-rc7/tools/build/Makefile.build:139: bench] Error 2

That 'len' variable is not used at all, so just make sure all the
synthesize_RECORD() routines return ssize_t to propagate the writen()
return, as it may fail, ditch the 'ret' var and bail out if those
routines fail.

Fixes: 0bf02a0d ("perf bench: Add build-id injection benchmark")
Acked-by: NNamhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/CAM9d7cgEZNSor+B+7Y2C+QYGme_v5aH0Zn0RLfxoQ+Fy83EHrg@mail.gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      edf7b4a2
    • L
      perf unwind: Do not overwrite FEATURE_CHECK_LDFLAGS-libunwind-{x86,aarch64} · cdf32b44
      由 Li Huafei 提交于 
      When setting LIBUNWIND_DIR, we first set

 FEATURE_CHECK_LDFLAGS-libunwind-{aarch64,x86} = -L$(LIBUNWIND_DIR)/lib.

<committer note>
This happens a bit before, the overwritting, in:

  libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
  define libunwind_arch_set_flags_code
    FEATURE_CHECK_CFLAGS-libunwind-$(1)  = -I$(LIBUNWIND_DIR)/include
    FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
  endef

  ifdef LIBUNWIND_DIR
    LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
    LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
    LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
    $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
  endif

Look at that 'foreach' on all the LIBUNWIND_ARCHS.
</>

After commit 5c4d7c82 ("perf unwind: Do not put libunwind-{x86,aarch64}
in FEATURE_TESTS_BASIC"), FEATURE_CHECK_LDFLAGS-libunwind-{x86,aarch64} is
overwritten. As a result, the remote libunwind libraries cannot be searched
from $(LIBUNWIND_DIR)/lib directory during feature check tests. Fix it with
variable appending.

Before this patch:

  perf$ make VF=1 LIBUNWIND_DIR=/opt/libunwind_aarch64
   BUILD:   Doing 'make -j16' parallel build
  <SNIP>
  ...
  ...                    libopencsd: [ OFF ]
  ...                 libunwind-x86: [ OFF ]
  ...              libunwind-x86_64: [ OFF ]
  ...                 libunwind-arm: [ OFF ]
  ...             libunwind-aarch64: [ OFF ]
  ...         libunwind-debug-frame: [ OFF ]
  ...     libunwind-debug-frame-arm: [ OFF ]
  ... libunwind-debug-frame-aarch64: [ OFF ]
  ...                           cxx: [ OFF ]
  <SNIP>

  perf$ cat ../build/feature/test-libunwind-aarch64.make.output
  /usr/bin/ld: cannot find -lunwind-aarch64
  /usr/bin/ld: cannot find -lunwind-aarch64
  collect2: error: ld returned 1 exit status

After this patch:

  perf$ make VF=1 LIBUNWIND_DIR=/opt/libunwind_aarch64
   BUILD:   Doing 'make -j16' parallel build
  <SNIP>
  ...                    libopencsd: [ OFF ]
  ...                 libunwind-x86: [ OFF ]
  ...              libunwind-x86_64: [ OFF ]
  ...                 libunwind-arm: [ OFF ]
  ...             libunwind-aarch64: [ on  ]
  ...         libunwind-debug-frame: [ OFF ]
  ...     libunwind-debug-frame-arm: [ OFF ]
  ... libunwind-debug-frame-aarch64: [ OFF ]
  ...                           cxx: [ OFF ]
  <SNIP>

  perf$ cat ../build/feature/test-libunwind-aarch64.make.output

  perf$ ldd ./perf
        linux-vdso.so.1 (0x00007ffdf07da000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f30953dc000)
        librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f30951d4000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f3094e36000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f3094c32000)
        libelf.so.1 => /usr/lib/x86_64-linux-gnu/libelf.so.1 (0x00007f3094a18000)
        libdw.so.1 => /usr/lib/x86_64-linux-gnu/libdw.so.1 (0x00007f30947cc000)
        libunwind-x86_64.so.8 => /usr/lib/x86_64-linux-gnu/libunwind-x86_64.so.8 (0x00007f30945ad000)
        libunwind.so.8 => /usr/lib/x86_64-linux-gnu/libunwind.so.8 (0x00007f3094392000)
        liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f309416c000)
        libunwind-aarch64.so.8 => not found
        libslang.so.2 => /lib/x86_64-linux-gnu/libslang.so.2 (0x00007f3093c8a000)
        libpython2.7.so.1.0 => /usr/local/lib/libpython2.7.so.1.0 (0x00007f309386b000)
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f309364e000)
        libnuma.so.1 => /usr/lib/x86_64-linux-gnu/libnuma.so.1 (0x00007f3093443000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f3093052000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f3096097000)
        libbz2.so.1.0 => /lib/x86_64-linux-gnu/libbz2.so.1.0 (0x00007f3092e42000)
        libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f3092c3f000)

Fixes: 5c4d7c82 ("perf unwind: Do not put libunwind-{x86,aarch64} in FEATURE_TESTS_BASIC")
Signed-off-by: NLi Huafei <lihuafei1@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Zhang Jinhao <zhangjinhao2@huawei.com>
Link: http://lore.kernel.org/lkml/20210823134340.60955-1-lihuafei1@huawei.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      cdf32b44
    • A
      perf config: Fix caching and memory leak in perf_home_perfconfig() · 261f4911
      由 Arnaldo Carvalho de Melo 提交于 
      Acaict, perf_home_perfconfig() is supposed to cache the result of
home_perfconfig, which returns the default location of perfconfig for
the user, given the HOME environment variable.

However, the current implementation calls home_perfconfig every time
perf_home_perfconfig() is called (so no caching is actually performed),
replacing the previous pointer, thus also causing a memory leak.

This patch adds a check of whether either config or failed is set and,
in that case, directly returns config without calling home_perfconfig at
each invocation.

Fixes: f5f03e19 ("perf config: Add perf_home_perfconfig function")
Signed-off-by: NRiccardo Mancini <rickyman7@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Link: http://lore.kernel.org/lkml/20210820130817.740536-1-rickyman7@gmail.com
[ Removed needless double check for the 'failed' variable ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      261f4911
    • A
      perf tools: Fixup get_current_dir_name() compilation · 128dbd78
      由 Alexey Dobriyan 提交于 
      strdup() prototype doesn't live in stdlib.h .

Add limits.h for PATH_MAX definition as well.

This fixes the build on Android.
Signed-off-by: NAlexey Dobriyan (SK hynix) <adobriyan@gmail.com>
Acked-by: NNamhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/YRukaQbrgDWhiwGr@localhost.localdomainSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      128dbd78
    • A
      Merge remote-tracking branch 'torvalds/master' into perf/core · c635813f
      由 Arnaldo Carvalho de Melo 提交于 
      To pick up fixes.
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      c635813f
    • L
      Linux 5.14 · 7d2a07b7
      由 Linus Torvalds 提交于
      7d2a07b7
    • L
      Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux · 90ac80dc
      由 Linus Torvalds 提交于 
      Pull clk fix from Stephen Boyd:
 "One hotfix for a NULL pointer deref in the Renesas usb clk driver"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: renesas: rcar-usb2-clock-sel: Fix kernel NULL pointer dereference
      90ac80dc
    • L
      Merge tag 'sched_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 537b57bd
      由 Linus Torvalds 提交于 
      Pull scheduler fixes from Borislav Petkov:

 - Have get_push_task() check whether current has migration disabled and
   thus avoid useless invocations of the migration thread

 - Rework initialization flow so that all rq->core's are initialized,
   even of CPUs which have not been onlined yet, so that iterating over
   them all works as expected

* tag 'sched_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Fix get_push_task() vs migrate_disable()
  sched: Fix Core-wide rq->lock for uninitialized CPUs
      537b57bd
    • L
      Merge tag 'irq_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f20a2637
      由 Linus Torvalds 提交于 
      Pull irq fix from Borislav Petkov:

 - Have msix_mask_all() check a global control which says whether MSI-X
   masking should be done and thus make it usable on Xen-PV too

* tag 'irq_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  PCI/MSI: Skip masking MSI-X on Xen PV
      f20a2637
    • L
      Merge tag 'perf_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 98d006eb
      由 Linus Torvalds 提交于 
      Pull perf fixes from Borislav Petkov:

 - Prevent the amd/power module from being removed while in use

 - Mark AMD IBS as not supporting content exclusion

 - Add a workaround for AMD erratum #1197 where IBS registers might not
   be restored properly after exiting CC6 state

 - Fix a potential truncation of a 32-bit variable due to shifting

 - Read the correct bits describing the number of configurable address
   ranges on Intel PT

* tag 'perf_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/amd/power: Assign pmu.module
  perf/x86/amd/ibs: Extend PERF_PMU_CAP_NO_EXCLUDE to IBS Op
  perf/x86/amd/ibs: Work around erratum #1197
  perf/x86/intel/uncore: Fix integer overflow on 23 bit left shift of a u32
  perf/x86/intel/pt: Fix mask of num_address_ranges
      98d006eb
    • L
      Merge tag 'x86_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 072a2767
      由 Linus Torvalds 提交于 
      Pull x86 fixes from Borislav Petkov:

 - Fix build error on RHEL where -Werror=maybe-uninitialized is set.

 - Restore the firmware's IDT when calling EFI boot services and before
   ExitBootServices() has been called. This fixes a boot failure on what
   appears to be a tablet with 32-bit UEFI running a 64-bit kernel.

* tag 'x86_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/resctrl: Fix a maybe-uninitialized build warning treated as error
  x86/efi: Restore Firmware IDT before calling ExitBootServices()
      072a2767
    • H
      Revert "parisc: Add assembly implementations for memset, strlen, strcpy, strncpy and strcat" · f6a3308d
      由 Helge Deller 提交于 
      This reverts commit 83af58f8.

It turns out that at least the assembly implementation for strncpy() was
buggy.  Revert the whole commit and return back to the default coding.
Signed-off-by: NHelge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v5.4+
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      f6a3308d
  7. 29 8月, 2021 4 次提交
  9. 28 8月, 2021 10 次提交
  11. 27 8月, 2021 1 次提交