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-rw-r--r--tools/perf/util/sort.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 690892a92cf3..0bd0ee3ae76b 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -141,7 +141,7 @@ void reset_dimensions(void);
int sort_dimension__add(struct perf_hpp_list *list, const char *tok,
struct evlist *evlist,
int level);
-int output_field_add(struct perf_hpp_list *list, char *tok);
+int output_field_add(struct perf_hpp_list *list, const char *tok);
int64_t
sort__iaddr_cmp(struct hist_entry *left, struct hist_entry *right);
int64_t