1 files changed, 29 insertions, 43 deletions

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index b9eac0daa0b9..d81f13de2476 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -68,6 +68,18 @@ struct perf_evlist *perf_evlist__new_default(void)
 	return evlist;
 }
 
+struct perf_evlist *perf_evlist__new_dummy(void)
+{
+	struct perf_evlist *evlist = perf_evlist__new();
+
+	if (evlist && perf_evlist__add_dummy(evlist)) {
+		perf_evlist__delete(evlist);
+		evlist = NULL;
+	}
+
+	return evlist;
+}
+
 /**
  * perf_evlist__set_id_pos - set the positions of event ids.
  * @evlist: selected event list
@@ -248,6 +260,22 @@ error:
 	return -ENOMEM;
 }
 
+int perf_evlist__add_dummy(struct perf_evlist *evlist)
+{
+	struct perf_event_attr attr = {
+		.type	= PERF_TYPE_SOFTWARE,
+		.config = PERF_COUNT_SW_DUMMY,
+		.size	= sizeof(attr), /* to capture ABI version */
+	};
+	struct perf_evsel *evsel = perf_evsel__new(&attr);
+
+	if (evsel == NULL)
+		return -ENOMEM;
+
+	perf_evlist__add(evlist, evsel);
+	return 0;
+}
+
 static int perf_evlist__add_attrs(struct perf_evlist *evlist,
 				  struct perf_event_attr *attrs, size_t nr_attrs)
 {
@@ -365,48 +393,6 @@ void perf_evlist__toggle_enable(struct perf_evlist *evlist)
 	(evlist->enabled ? perf_evlist__disable : perf_evlist__enable)(evlist);
 }
 
-int perf_evlist__disable_event(struct perf_evlist *evlist,
-			       struct perf_evsel *evsel)
-{
-	int cpu, thread, err;
-	int nr_cpus = cpu_map__nr(evlist->cpus);
-	int nr_threads = perf_evlist__nr_threads(evlist, evsel);
-
-	if (!evsel->fd)
-		return 0;
-
-	for (cpu = 0; cpu < nr_cpus; cpu++) {
-		for (thread = 0; thread < nr_threads; thread++) {
-			err = ioctl(FD(evsel, cpu, thread),
-				    PERF_EVENT_IOC_DISABLE, 0);
-			if (err)
-				return err;
-		}
-	}
-	return 0;
-}
-
-int perf_evlist__enable_event(struct perf_evlist *evlist,
-			      struct perf_evsel *evsel)
-{
-	int cpu, thread, err;
-	int nr_cpus = cpu_map__nr(evlist->cpus);
-	int nr_threads = perf_evlist__nr_threads(evlist, evsel);
-
-	if (!evsel->fd)
-		return -EINVAL;
-
-	for (cpu = 0; cpu < nr_cpus; cpu++) {
-		for (thread = 0; thread < nr_threads; thread++) {
-			err = ioctl(FD(evsel, cpu, thread),
-				    PERF_EVENT_IOC_ENABLE, 0);
-			if (err)
-				return err;
-		}
-	}
-	return 0;
-}
-
 static int perf_evlist__enable_event_cpu(struct perf_evlist *evlist,
 					 struct perf_evsel *evsel, int cpu)
 {
@@ -1470,7 +1456,7 @@ int perf_evlist__open(struct perf_evlist *evlist)
 	perf_evlist__update_id_pos(evlist);
 
 	evlist__for_each(evlist, evsel) {
-		err = perf_evsel__open(evsel, evlist->cpus, evlist->threads);
+		err = perf_evsel__open(evsel, evsel->cpus, evsel->threads);
 		if (err < 0)
 			goto out_err;
 	}