[NET]: Fix assorted misannotations (from md5 and udplite merges).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/udp.h b/include/net/udp.h
index c5ccd9a..eac69ff 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -77,7 +77,7 @@
 				      skb->csum));
 }
 
-static inline __sum16 udp_lib_checksum_complete(struct sk_buff *skb)
+static inline int udp_lib_checksum_complete(struct sk_buff *skb)
 {
 	return skb->ip_summed != CHECKSUM_UNNECESSARY &&
 		__udp_lib_checksum_complete(skb);