From: Namhyung Kim <namhyung....@lge.com>

Currently only non-leader members are set ->leader to the leader evsel
of the group and the leader has set NULL.  Thus it requires special
casing for leader evsels.  Set ->leader to itself will remove this.

Suggested-by: Arnaldo Carvalho de Melo <a...@ghostprotocols.net>
Signed-off-by: Namhyung Kim <namhy...@kernel.org>
Acked-by: Jiri Olsa <jo...@redhat.com>
Cc: Andi Kleen <a...@firstfloor.org>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Cc: Stephane Eranian <eran...@google.com>
Link: 
http://lkml.kernel.org/r/1354171126-14387-3-git-send-email-namhy...@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/util/evlist.c |    1 -
 tools/perf/util/evsel.c  |    1 +
 tools/perf/util/evsel.h  |    2 +-
 3 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 7052934..90db2a1 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -111,7 +111,6 @@ void __perf_evlist__set_leader(struct list_head *list)
        struct perf_evsel *evsel, *leader;
 
        leader = list_entry(list->next, struct perf_evsel, node);
-       leader->leader = NULL;
 
        list_for_each_entry(evsel, list, node) {
                if (evsel != leader)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 1b16dd1..7e93418 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -55,6 +55,7 @@ void perf_evsel__init(struct perf_evsel *evsel,
 {
        evsel->idx         = idx;
        evsel->attr        = *attr;
+       evsel->leader      = evsel;
        INIT_LIST_HEAD(&evsel->node);
        hists__init(&evsel->hists);
        evsel->sample_size = __perf_evsel__sample_size(attr->sample_type);
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 3d2b801..cbf6d97 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -228,6 +228,6 @@ static inline struct perf_evsel *perf_evsel__next(struct 
perf_evsel *evsel)
 
 static inline bool perf_evsel__is_group_member(const struct perf_evsel *evsel)
 {
-       return evsel->leader != NULL;
+       return evsel->leader != evsel;
 }
 #endif /* __PERF_EVSEL_H */
-- 
1.7.9.2.358.g22243

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