From: Riccardo Mancini <rickyman7@gmail.com>
Date: Sat, 21 Aug 2021 09:19:24 +0000 (+0200)
Subject: perf evsel: Add evsel__prepare_open()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=6efd06e3741944e528bc8243c88d9e3320c1c80c;p=linux.git

perf evsel: Add evsel__prepare_open()

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@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/fa5e78bbb92c848226f044278fdcf777b3ce4583.1629490974.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index f0bc89f743915..45d778f063d47 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 76efcfa3e14d0..b173700db8af6 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -287,6 +287,8 @@ 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;