From: Adrian Hunter Date: Tue, 16 Jan 2018 13:14:51 +0000 (+0200) Subject: perf evsel: Ensure reserved member of PERF_SAMPLE_CPU is zero in perf_event__synthesi... X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=59a87fdad1467d228acc5cb1303b0b568a9e86a8;p=linux.git perf evsel: Ensure reserved member of PERF_SAMPLE_CPU is zero in perf_event__synthesize_sample() PERF_SAMPLE_CPU contains the cpu number in the first 4 bytes and the second 4 bytes are reserved. Ensure the reserved bytes are zero in perf_event__synthesize_sample(). Signed-off-by: Adrian Hunter Acked-by: Jiri Olsa Link: http://lkml.kernel.org/r/1516108492-21401-3-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 85eb84dfdf917..44032679180fd 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -2533,6 +2533,7 @@ int perf_event__synthesize_sample(union perf_event *event, u64 type, if (type & PERF_SAMPLE_CPU) { u.val32[0] = sample->cpu; + u.val32[1] = 0; if (swapped) { /* * Inverse of what is done in perf_evsel__parse_sample