From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Subject: [PATCH 02/43] perf evsel: Ensure reserved member of PERF_SAMPLE_CPU is zero in perf_event__synthesize_sample() Date: Tue, 23 Jan 2018 10:12:10 -0300 Message-ID: <20180123131251.28197-3-acme@kernel.org> References: <20180123131251.28197-1-acme@kernel.org> Return-path: In-Reply-To: <20180123131251.28197-1-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Adrian Hunter , Arnaldo Carvalho de Melo List-Id: linux-perf-users.vger.kernel.org From: Adrian Hunter 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 --- tools/perf/util/evsel.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 85eb84dfdf91..44032679180f 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 -- 2.14.3