perf tools: Rename and move pmu_event_name to get_config_name

Following commits will make more events obey /name=newname/ options.
This patch makes pmu_event_name() a generic helper.

Makes new get_config_name() accept NULL input to make life easier.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Cody P Schafer <dev@codyps.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jeremie Galarneau <jeremie.galarneau@efficios.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kirill Smelkov <kirr@nexedi.com>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1455882283-79592-12-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 18 insertions, 17 deletions

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index eb5df43ec68f..3243e95eb1c7 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -279,7 +279,24 @@ const char *event_type(int type)
         return "unknown";
 }
 
+static int parse_events__is_name_term(struct parse_events_term *term)
+{
+        return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
+}
 
+static char *get_config_name(struct list_head *head_terms)
+{
+        struct parse_events_term *term;
+
+        if (!head_terms)
+                return NULL;
+
+        list_for_each_entry(term, head_terms, list)
+                if (parse_events__is_name_term(term))
+                        return term->val.str;
+
+        return NULL;
+}
 
 static struct perf_evsel *
 __add_event(struct list_head *list, int *idx,
@@ -1029,22 +1046,6 @@ int parse_events_add_numeric(struct parse_events_evlist *data,
         return add_event(list, &data->idx, &attr, NULL, &config_terms);
 }
 
-static int parse_events__is_name_term(struct parse_events_term *term)
-{
-        return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
-}
-
-static char *pmu_event_name(struct list_head *head_terms)
-{
-        struct parse_events_term *term;
-
-        list_for_each_entry(term, head_terms, list)
-                if (parse_events__is_name_term(term))
-                        return term->val.str;
-
-        return NULL;
-}
-
 int parse_events_add_pmu(struct parse_events_evlist *data,
                          struct list_head *list, char *name,
                          struct list_head *head_config)
@@ -1089,7 +1090,7 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
                 return -EINVAL;
 
         evsel = __add_event(list, &data->idx, &attr,
-                            pmu_event_name(head_config), pmu->cpus,
+                            get_config_name(head_config), pmu->cpus,
                             &config_terms);
         if (evsel) {
                 evsel->unit = info.unit;