md: proper extern for mdp_major

This patch adds a proper extern for mdp_major in include/linux/raid/md.h

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/raid/md.h

@@ -72,6 +72,8 @@
  */
 #define MD_PATCHLEVEL_VERSION           3
 
+extern int mdp_major;
+
 extern int register_md_personality (struct mdk_personality *p);
 extern int unregister_md_personality (struct mdk_personality *p);
 extern mdk_thread_t * md_register_thread (void (*run) (mddev_t *mddev),

init/do_mounts_md.c

@@ -24,7 +24,6 @@ static struct {
 
 static int md_setup_ents __initdata;
 
-extern int mdp_major;
 /*
  * Parse the command-line parameters given our kernel, but do not
  * actually try to invoke the MD device now; that is handled by