diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 1db7825..450fbd9 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -71,6 +71,8 @@
 void dm_set_md_type(struct mapped_device *md, unsigned type);
 unsigned dm_get_md_type(struct mapped_device *md);
 
+int dm_setup_md_queue(struct mapped_device *md);
+
 /*
  * To check the return value from dm_table_find_target().
  */