2 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/usage.c b/tools/perf/util/usage.c
index 4007aca8e0ca..6adfa18cdd4e 100644
--- a/tools/perf/util/usage.c
+++ b/tools/perf/util/usage.c
@@ -50,6 +50,11 @@ void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN)
 	die_routine = routine;
 }
 
+void set_warning_routine(void (*routine)(const char *err, va_list params))
+{
+	warn_routine = routine;
+}
+
 void usage(const char *err)
 {
 	usage_routine(err);
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 3d5b01e8978f..4cfb913aa9e0 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -145,6 +145,7 @@ extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)))
 
 
 extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN);
+extern void set_warning_routine(void (*routine)(const char *err, va_list params));
 
 extern int prefixcmp(const char *str, const char *prefix);
 extern void set_buildid_dir(const char *dir);