perf_evlist__set_filter() tries to set filter to every evsels linked in the evlist. However, since filters can only be applied to tracepoints, checking type of evsel before calling perf_evsel__set_filter() would be better.
Signed-off-by: Wang Nan <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Li Zefan <[email protected]> Cc: [email protected] --- tools/perf/util/evlist.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index c42e196..86a0383 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1223,6 +1223,9 @@ int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter) int err = 0; evlist__for_each(evlist, evsel) { + if (evsel->attr.type != PERF_TYPE_TRACEPOINT) + continue; + err = perf_evsel__set_filter(evsel, filter); if (err) break; -- 1.8.3.4
