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authorArnaldo Carvalho de Melo <acme@redhat.com>2013-11-13 22:56:40 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-11-14 23:00:16 +0400
commitd87fcb4a2d990ba2de9284ede84a816c5066d54b (patch)
treea9f5d05256aee5504d165941de88c88676a03b3f /tools/perf
parent9a354cdc2f40344a177d369fb4987a8270dd94df (diff)
downloadlinux-d87fcb4a2d990ba2de9284ede84a816c5066d54b.tar.xz
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@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-d09l4lejp5427enuf3igpckw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/ui/browsers/hists.c2
-rw-r--r--tools/perf/util/evsel.h5
2 files changed, 6 insertions, 1 deletions
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 089fd3713783..a440e03cd8c2 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 f5029653dcd7..1ea7c92e6e33 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
*