1 files changed, 1 insertions, 0 deletions
diff --git a/mdadm.h b/mdadm.h
index 7a6b63f4..72104da1 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -775,6 +775,7 @@ extern int mdmon_running(int devnum);
 extern int signal_mdmon(int devnum);
 
 extern char *devnum2devname(int num);
+extern int devname2devnum(char *name);
 extern int fd2devnum(int fd);
 
 static inline int dev2major(int d)