md: Add module.h to all files using it implicitly
A pending cleanup will mean that module.h won't be implicitly
everywhere anymore. Make sure the modular drivers in md dir
are actually calling out for <module.h> explicitly in advance.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/drivers/md/dm-round-robin.c b/drivers/md/dm-round-robin.c
index 24752f4..27f1d42 100644
--- a/drivers/md/dm-round-robin.c
+++ b/drivers/md/dm-round-robin.c
@@ -14,6 +14,7 @@
#include "dm-path-selector.h"
#include <linux/slab.h>
+#include <linux/module.h>
#define DM_MSG_PREFIX "multipath round-robin"