Commit-ID: d87fcb4a2d990ba2de9284ede84a816c5066d54b
Gitweb: http://git.kernel.org/tip/d87fcb4a2d990ba2de9284ede84a816c5066d54b
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Wed, 13 Nov 2013 15:56:40 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 14 Nov 2013 16:00:16 -0300
perf evsel: Introduce perf_evsel__prev() method
Just one use so far, on the hists browser, for completeness since there
we use perf_evlist__{first,last} and perf_evsel__next() for handling the
TAB and UNTAB keys.
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-d09l4lejp5427enuf3igpckw@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/ui/browsers/hists.c | 2 +-
tools/perf/util/evsel.h | 5 +++++
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 089fd37..a440e03 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1855,7 +1855,7 @@ browse_hists:
if (pos->node.prev == &evlist->entries)
pos = perf_evlist__last(evlist);
else
- pos = list_entry(pos->node.prev, struct perf_evsel, node);
+ pos = perf_evsel__prev(pos);
goto browse_hists;
case K_ESC:
if (!ui_browser__dialog_yesno(&menu->b,
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index f502965..1ea7c92 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -279,6 +279,11 @@ static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
return list_entry(evsel->node.next, struct perf_evsel, node);
}
+static inline struct perf_evsel *perf_evsel__prev(struct perf_evsel *evsel)
+{
+ return list_entry(evsel->node.prev, struct perf_evsel, node);
+}
+
/**
* perf_evsel__is_group_leader - Return whether given evsel is a leader event
*
--
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