[IPV4]: PIMv2 header annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/mroute.h b/include/linux/mroute.h
index e05d54a..c7dd4c1 100644
--- a/include/linux/mroute.h
+++ b/include/linux/mroute.h
@@ -213,8 +213,8 @@
 {
 	__u8	type;
 	__u8	reserved;
-	__u16	csum;
-	__u32	flags;
+	__be16	csum;
+	__be32	flags;
 };
 
 extern int pim_rcv_v1(struct sk_buff *);