diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-10-05 19:12:46 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-10-05 19:12:46 -0300 |
| commit | d23e354fe58aada6d1cdeeb7e8463b75d44bc687 (patch) | |
| tree | 2dad3326be13b1ea36bee8ecfabc88d326bfa19e /tools/arch/x86/lib | |
| parent | 72c6ff2583fba824dc38c0ce87b838631cdb8294 (diff) | |
perf bench mem: Sync memcpy assembly sources with the kernel
Commit 9a6fb28a355d ("x86/mce: Improve memcpy_mcsafe()") renames
memcpy_mcsafe() to memcpy_mcsafe_unrolled(), making
tools/arch/x86/lib/memcpy_64.S drift from the its kernel counterpart,
triggering this warning in the perf build:
Warning: tools/arch/x86/lib/memcpy_64.S differs from kernel
Sync that copy to acknowledge that, no changes to 'perf bench' are
needed, as this function is not used there.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-xfwc1raw8obyrctxerwt1bbb@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/arch/x86/lib')
| -rw-r--r-- | tools/arch/x86/lib/memcpy_64.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/arch/x86/lib/memcpy_64.S b/tools/arch/x86/lib/memcpy_64.S index 2ec0b0abbfaa..49e6ebac7e73 100644 --- a/tools/arch/x86/lib/memcpy_64.S +++ b/tools/arch/x86/lib/memcpy_64.S @@ -181,11 +181,11 @@ ENDPROC(memcpy_orig) #ifndef CONFIG_UML /* - * memcpy_mcsafe - memory copy with machine check exception handling + * memcpy_mcsafe_unrolled - memory copy with machine check exception handling * Note that we only catch machine checks when reading the source addresses. * Writes to target are posted and don't generate machine checks. */ -ENTRY(memcpy_mcsafe) +ENTRY(memcpy_mcsafe_unrolled) cmpl $8, %edx /* Less than 8 bytes? Go to byte copy loop */ jb .L_no_whole_words @@ -273,7 +273,7 @@ ENTRY(memcpy_mcsafe) .L_done_memcpy_trap: xorq %rax, %rax ret -ENDPROC(memcpy_mcsafe) +ENDPROC(memcpy_mcsafe_unrolled) .section .fixup, "ax" /* Return -EFAULT for any failure */ |