[NET]: annotate csum_ipv6_magic() callers in net/*

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/udp.h

diff --git a/include/net/udp.h b/include/net/udp.h
index 4f06267..39e825a 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -89,9 +89,9 @@
  * 	@skb: 	sk_buff containing the filled-in UDP header
  * 	        (checksum field must be zeroed out)
  */
-static inline u32 udp_csum_outgoing(struct sock *sk, struct sk_buff *skb)
+static inline __wsum udp_csum_outgoing(struct sock *sk, struct sk_buff *skb)
 {
-	u32 csum = csum_partial(skb->h.raw, sizeof(struct udphdr), 0);
+	__wsum csum = csum_partial(skb->h.raw, sizeof(struct udphdr), 0);
 
 	skb_queue_walk(&sk->sk_write_queue, skb) {
 		csum = csum_add(csum, skb->csum);

include/net/udplite.h

diff --git a/include/net/udplite.h b/include/net/udplite.h
index 1473b3e..406eb75 100644
--- a/include/net/udplite.h
+++ b/include/net/udplite.h
@@ -124,10 +124,10 @@
 	return cscov;
 }
 
-static inline u32 udplite_csum_outgoing(struct sock *sk, struct sk_buff *skb)
+static inline __wsum udplite_csum_outgoing(struct sock *sk, struct sk_buff *skb)
 {
-	u32 csum = 0;
 	int off, len, cscov = udplite_sender_cscov(udp_sk(sk), skb->h.uh);
+	__wsum csum = 0;
 
 	skb->ip_summed = CHECKSUM_NONE;     /* no HW support for checksumming */