perf session: Share the common trace sample_check routine as perf_session__has_traces

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1261957026-15580-5-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 12 deletions

diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index a589a43112d6..b42f337c17d9 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -1029,23 +1029,12 @@ static void process_samples(struct perf_session *session)
         }
 }
 
-static int sample_type_check(struct perf_session *session)
-{
-        if (!(session->sample_type & PERF_SAMPLE_RAW)) {
-                fprintf(stderr, "No trace samples found in the file.\n"
-                                "Have you used 'perf timechart record' to record it?\n");
-                return -1;
-        }
-
-        return 0;
-}
-
 static struct perf_event_ops event_ops = {
         .process_comm_event     = process_comm_event,
         .process_fork_event     = process_fork_event,
         .process_exit_event     = process_exit_event,
         .process_sample_event   = queue_sample_event,
-        .sample_type_check      = sample_type_check,
+        .sample_type_check      = perf_session__has_traces,
 };
 
 static int __cmd_timechart(void)