diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c
index d6da5cdd3c38..ff95e3192884 100644
--- a/init/do_mounts_md.c
+++ b/init/do_mounts_md.c
@@ -271,7 +271,7 @@ static int __init raid_setup(char *str)
 __setup("raid=", raid_setup);
 __setup("md=", md_setup);
 
-static void autodetect_raid(void)
+static void __init autodetect_raid(void)
 {
 	int fd;