[tip:perf/core] perf metricgroup: Use strsep()

[tip-bot for Arnaldo Carvalho de Melo]

Commit-ID:  80e9073f1f4473639d585b89ebc9130bb47920e8
Gitweb:     https://git.kernel.org/tip/80e9073f1f4473639d585b89ebc9130bb47920e8
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Wed, 26 Jun 2019 11:21:47 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 26 Jun 2019 11:31:43 -0300

perf metricgroup: Use strsep()

No change in behaviour intended, trivial optimization done by avoiding
looking for spaces in 'g' right after setting it to "No_group".

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Link: https://lkml.kernel.org/n/tip-f2siadtp3hb5o0l1w7bvd8bk@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/metricgroup.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index a0cf3cd95ced..90cd84e2a503 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -308,10 +308,9 @@ void metricgroup__print(bool metrics, bool metricgroups, char *filter,
 				struct mep *me;
 				char *s;
 
+				g = skip_spaces(g);
 				if (*g == 0)
 					g = "No_group";
-				while (isspace(*g))
-					g++;
 				if (filter && !strstr(g, filter))
 					continue;
 				if (raw)