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-rw-r--r--tools/perf/util/map.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index 4c1c2da704b2..6fabad1fd025 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -133,7 +133,7 @@ struct machine *machines__add(struct rb_root *self, pid_t pid,
struct machine *machines__find_host(struct rb_root *self);
struct machine *machines__find(struct rb_root *self, pid_t pid);
struct machine *machines__findnew(struct rb_root *self, pid_t pid);
-char *machine__mmap_name(struct machine *self, char *buff);
+char *machine__mmap_name(struct machine *self, char *bf, size_t size);
/*
* Default guest kernel is defined by parameter --guestkallsyms