diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 708923b9..38a5ff7 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -584,7 +584,7 @@
 
 #define list_entry_rq(ptr)	list_entry((ptr), struct request, queuelist)
 
-#define rq_data_dir(rq)		(((rq)->cmd_flags & 1) != 0)
+#define rq_data_dir(rq)		((int)((rq)->cmd_flags & 1))
 
 /*
  * Driver can handle struct request, if it either has an old style