[NET]: Annotate dst_ops protocol

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/dst.h b/include/net/dst.h
index a8d825f..e156e38 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -84,7 +84,7 @@
 struct dst_ops
 {
 	unsigned short		family;
-	unsigned short		protocol;
+	__be16			protocol;
 	unsigned		gc_thresh;
 
 	int			(*gc)(void);