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-rw-r--r--tools/perf/util/iostat.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/util/iostat.h b/tools/perf/util/iostat.h
index 23c1c46a331a..a4e7299c5c2f 100644
--- a/tools/perf/util/iostat.h
+++ b/tools/perf/util/iostat.h
@@ -28,7 +28,7 @@ enum iostat_mode_t {
extern enum iostat_mode_t iostat_mode;
-typedef void (*iostat_print_counter_t)(struct perf_stat_config *, struct evsel *, char *);
+typedef void (*iostat_print_counter_t)(struct perf_stat_config *, struct evsel *, void *);
int iostat_prepare(struct evlist *evlist, struct perf_stat_config *config);
int iostat_parse(const struct option *opt, const char *str,
@@ -42,6 +42,6 @@ void iostat_print_metric(struct perf_stat_config *config, struct evsel *evsel,
struct perf_stat_output_ctx *out);
void iostat_print_counters(struct evlist *evlist,
struct perf_stat_config *config, struct timespec *ts,
- char *prefix, iostat_print_counter_t print_cnt_cb);
+ char *prefix, iostat_print_counter_t print_cnt_cb, void *arg);
#endif /* _IOSTAT_H */