Messages in this thread Patch in this message | | | Date | Thu, 23 Aug 2018 01:47:31 -0700 | From | tip-bot for Arnaldo Carvalho de Melo <> | Subject | [tip:perf/urgent] tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy' |
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Commit-ID: 78303650e4cd873c6c4276c6fe3e768ff0b46d22 Gitweb: https://git.kernel.org/tip/78303650e4cd873c6c4276c6fe3e768ff0b46d22 Author: Arnaldo Carvalho de Melo <acme@redhat.com> AuthorDate: Mon, 20 Aug 2018 10:17:14 -0300 Committer: Arnaldo Carvalho de Melo <acme@redhat.com> CommitDate: Mon, 20 Aug 2018 10:17:14 -0300
tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'
To bring in the change made in this cset:
Fixes: a7bea8308933 ("x86/asm/64: Use 32-bit XOR to zero registers")
CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o LD /tmp/build/perf/bench/perf-in.o LD /tmp/build/perf/perf-in.o LINK /tmp/build/perf/perf
Silencing this perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S' diff -u tools/arch/x86/lib/memcpy_64.S arch/x86/lib/memcpy_64.S
Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jan Beulich <JBeulich@suse.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-sad22dudoz71qr3tsnlqtkia@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/arch/x86/lib/memcpy_64.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/arch/x86/lib/memcpy_64.S b/tools/arch/x86/lib/memcpy_64.S index 298ef1479240..3b24dc05251c 100644 --- a/tools/arch/x86/lib/memcpy_64.S +++ b/tools/arch/x86/lib/memcpy_64.S @@ -256,7 +256,7 @@ ENTRY(__memcpy_mcsafe) /* Copy successful. Return zero */ .L_done_memcpy_trap: - xorq %rax, %rax + xorl %eax, %eax ret ENDPROC(__memcpy_mcsafe) EXPORT_SYMBOL_GPL(__memcpy_mcsafe)
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