The function convert_scale() can be used to convert string
to unit and scale. For example,

s = "6000000000ns";
convert_scale(s, &unit, &scale);

unit = "ns", scale = 6000000000.

Currently this function is static. This patch renames the function
to perf_pmu__convert_scale and changes the function to global.
No functional change.

Signed-off-by: Jin Yao <yao....@linux.intel.com>
---
 tools/perf/util/pmu.c | 6 +++---
 tools/perf/util/pmu.h | 2 ++
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 9807be6f09bb..8e35e97ecf90 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -101,7 +101,7 @@ static int pmu_format(const char *name, struct list_head 
*format)
        return 0;
 }
 
-static int convert_scale(const char *scale, char **end, double *sval)
+int perf_pmu__convert_scale(const char *scale, char **end, double *sval)
 {
        char *lc;
        int ret = 0;
@@ -164,7 +164,7 @@ static int perf_pmu__parse_scale(struct perf_pmu_alias 
*alias, char *dir, char *
        else
                scale[sret] = '\0';
 
-       ret = convert_scale(scale, NULL, &alias->scale);
+       ret = perf_pmu__convert_scale(scale, NULL, &alias->scale);
 error:
        close(fd);
        return ret;
@@ -372,7 +372,7 @@ static int __perf_pmu__new_alias(struct list_head *list, 
char *dir, char *name,
                                desc ? strdup(desc) : NULL;
        alias->topic = topic ? strdup(topic) : NULL;
        if (unit) {
-               if (convert_scale(unit, &unit, &alias->scale) < 0)
+               if (perf_pmu__convert_scale(unit, &unit, &alias->scale) < 0)
                        return -1;
                snprintf(alias->unit, sizeof(alias->unit), "%s", unit);
        }
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 3f8b79b1dd85..f36ade6df76d 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -96,4 +96,6 @@ struct perf_event_attr *perf_pmu__get_default_config(struct 
perf_pmu *pmu);
 
 struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu);
 
+int perf_pmu__convert_scale(const char *scale, char **end, double *sval);
+
 #endif /* __PMU_H */
-- 
2.17.1

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