evsel__append_tp_filter
if (!evsel__append_tp_filter(trace->syscalls.events.sys_enter, filter)) {
err = evsel__append_tp_filter(sys_exit, filter);
err = evsel__append_tp_filter(evsel, filter);
int evsel__append_tp_filter(struct evsel *evsel, const char *filter);
if (evsel__append_tp_filter(evsel, str) < 0) {
if (evsel__append_tp_filter(evsel, new_filter) < 0) {