[tip:perf/core] perf hists: Introduce perf_hpp_list__init function

[tip-bot for Jiri Olsa]

Commit-ID:  94b3dc3865097e11073f1abf5b20b5f80af223af
Gitweb:     http://git.kernel.org/tip/94b3dc3865097e11073f1abf5b20b5f80af223af
Author:     Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Mon, 18 Jan 2016 10:24:13 +0100
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 3 Feb 2016 12:24:11 -0300

perf hists: Introduce perf_hpp_list__init function

Introducing perf_hpp_list__init function to have an easy way to
initialize perf_hpp_list struct.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1453109064-1026-16-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/hist.c | 6 ++++++
 tools/perf/util/hist.h | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index d07955c..b762ecc 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1642,3 +1642,9 @@ int hists__init(void)
 
 	return err;
 }
+
+void perf_hpp_list__init(struct perf_hpp_list *list)
+{
+	INIT_LIST_HEAD(&list->fields);
+	INIT_LIST_HEAD(&list->sorts);
+}
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 203397a..e22f98e 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -386,4 +386,6 @@ int parse_filter_percentage(const struct option *opt __maybe_unused,
 			    const char *arg, int unset __maybe_unused);
 int perf_hist_config(const char *var, const char *value);
 
+void perf_hpp_list__init(struct perf_hpp_list *list);
+
 #endif	/* __PERF_HIST_H */