[tip:perf/core] perf script: Check output fields only for samples

[tip-bot for Jiri Olsa]

Commit-ID:  d2b5a315ae84d235f00761468885c466f81d7805
Gitweb:     http://git.kernel.org/tip/d2b5a315ae84d235f00761468885c466f81d7805
Author:     Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Fri, 16 Oct 2015 12:41:25 +0200
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Mon, 19 Oct 2015 18:05:59 -0300

perf script: Check output fields only for samples

There's no need to check sampling output fields for events without
perf_event_attr::sample_type field set.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Tested-by: Kan Liang <kan.liang@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1444992092-17897-51-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/builtin-script.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 8ce1c6b..2653c02 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -686,7 +686,10 @@ static int process_attr(struct perf_tool *tool, union perf_event *event,
 
 	set_print_ip_opts(&evsel->attr);
 
-	return perf_evsel__check_attr(evsel, scr->session);
+	if (evsel->attr.sample_type)
+		err = perf_evsel__check_attr(evsel, scr->session);
+
+	return err;
 }
 
 static int process_comm_event(struct perf_tool *tool,
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/