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authorSong Liu <songliubraving@fb.com>2019-02-04 11:31:40 -0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-02-14 13:31:11 -0300
commit39f4a913d6d439178177cae8aa2e9a232160fd51 (patch)
tree8c80a8796a7462d795f95fa8de2410b60df1b942 /tools/build
parent33937e599449c65dbd69c60d7e2255012427baed (diff)
perf utils: Silence "Couldn't synthesize bpf events" warning for EPERM
Synthesizing BPF events is only supported for root. Silent warning msg when non-root user runs perf-record. Reported-by: David Carrillo-Cisneros <davidca@fb.com> Signed-off-by: Song Liu <songliubraving@fb.com> Tested-by: David Carrillo-Cisneros <davidca@fb.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: kernel-team@fb.com Link: http://lkml.kernel.org/r/20190204193140.719740-1-songliubraving@fb.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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