diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index c51c29fd..70ec8d0 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -258,8 +258,8 @@
 	return *(int *)a - *(int *)b;
 }
 
-static int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res,
-			      int (*f)(struct cpu_map *map, int cpu))
+int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res,
+		       int (*f)(struct cpu_map *map, int cpu))
 {
 	struct cpu_map *c;
 	int nr = cpus->nr;
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index 8982d53..6e36fc3 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -87,4 +87,6 @@
 	return cpunode_map[cpu];
 }
 
+int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res,
+		       int (*f)(struct cpu_map *map, int cpu));
 #endif /* __PERF_CPUMAP_H */