perf evlist: Use libperf functions in evlist__enable_event_idx()

evlist__enable_event_idx() is used only for auxtrace events which are never
system_wide. Simplify by using libperf enable event functions.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/20220506122601.367589-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 52ea004..9fcecf7 100644 (file)
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -334,14 +334,6 @@ int evlist__add_newtp(struct evlist *evlist, const char *sys, const char *name,
        return 0;
 }
 
-static int evlist__nr_threads(struct evlist *evlist, struct evsel *evsel)
-{
-       if (evsel->core.system_wide)
-               return 1;
-       else
-               return perf_thread_map__nr(evlist->core.threads);
-}
-
 struct evlist_cpu_iterator evlist__cpu_begin(struct evlist *evlist, struct affinity *affinity)
 {
        struct evlist_cpu_iterator itr = {
@@ -546,46 +538,14 @@ void evlist__toggle_enable(struct evlist *evlist)
        (evlist->enabled ? evlist__disable : evlist__enable)(evlist);
 }
 
-static int evlist__enable_event_cpu(struct evlist *evlist, struct evsel *evsel, int cpu)
-{
-       int thread;
-       int nr_threads = evlist__nr_threads(evlist, evsel);
-
-       if (!evsel->core.fd)
-               return -EINVAL;
-
-       for (thread = 0; thread < nr_threads; thread++) {
-               int err = ioctl(FD(evsel, cpu, thread), PERF_EVENT_IOC_ENABLE, 0);
-               if (err)
-                       return err;
-       }
-       return 0;
-}
-
-static int evlist__enable_event_thread(struct evlist *evlist, struct evsel *evsel, int thread)
-{
-       int cpu;
-       int nr_cpus = perf_cpu_map__nr(evlist->core.user_requested_cpus);
-
-       if (!evsel->core.fd)
-               return -EINVAL;
-
-       for (cpu = 0; cpu < nr_cpus; cpu++) {
-               int err = ioctl(FD(evsel, cpu, thread), PERF_EVENT_IOC_ENABLE, 0);
-               if (err)
-                       return err;
-       }
-       return 0;
-}
-
 int evlist__enable_event_idx(struct evlist *evlist, struct evsel *evsel, int idx)
 {
        bool per_cpu_mmaps = !perf_cpu_map__empty(evlist->core.user_requested_cpus);
 
        if (per_cpu_mmaps)
-               return evlist__enable_event_cpu(evlist, evsel, idx);
+               return perf_evsel__enable_cpu(&evsel->core, idx);
 
-       return evlist__enable_event_thread(evlist, evsel, idx);
+       return perf_evsel__enable_thread(&evsel->core, idx);
 }
 
 int evlist__add_pollfd(struct evlist *evlist, int fd)