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-rw-r--r--tools/perf/util/units.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/units.c b/tools/perf/util/units.c
index 4c6a86e1cb54..0bbacf5a29aa 100644
--- a/tools/perf/util/units.c
+++ b/tools/perf/util/units.c
@@ -12,7 +12,7 @@ unsigned long parse_tag_value(const char *str, struct parse_tag *tags)
struct parse_tag *i = tags;
while (i->tag) {
- char *s = strchr(str, i->tag);
+ const char *s = strchr(str, i->tag);
if (s) {
unsigned long int value;