[RFC PATCH v1 18/37] perf evsel: add evsel__prepare_open function

[Riccardo Mancini]

This function will prepare the evsel and disable the missing features.
It will be used in one of the following patches.

Signed-off-by: Riccardo Mancini <rickyman7@xxxxxxxxx>
---
 tools/perf/util/evsel.c | 14 ++++++++++++++
 tools/perf/util/evsel.h |  2 ++
 2 files changed, 16 insertions(+)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index f0bc89f743915800..4e9a3e62075305f1 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1827,6 +1827,20 @@ static void evsel__disable_missing_features(struct evsel *evsel)
 		evsel->core.attr.sample_id_all = 0;
 }
 
+int evsel__prepare_open(struct evsel *evsel, struct perf_cpu_map *cpus,
+		struct perf_thread_map *threads)
+{
+	int err;
+
+	err = __evsel__prepare_open(evsel, cpus, threads);
+	if (err)
+		return err;
+
+	evsel__disable_missing_features(evsel);
+
+	return err;
+}
+
 static int evsel__open_cpu(struct evsel *evsel, struct perf_cpu_map *cpus,
 		struct perf_thread_map *threads,
 		int start_cpu, int end_cpu)
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 1c0057e80d080f2f..58aa998e1814ac9e 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -286,6 +286,8 @@ int evsel__open_per_thread(struct evsel *evsel, struct perf_thread_map *threads)
 int evsel__open(struct evsel *evsel, struct perf_cpu_map *cpus,
 		struct perf_thread_map *threads);
 void evsel__close(struct evsel *evsel);
+int evsel__prepare_open(struct evsel *evsel, struct perf_cpu_map *cpus,
+		struct perf_thread_map *threads);
 
 struct perf_sample;
 
-- 
2.31.1