[NET]: Annotate callers of csum_partial_copy_...() and csum_and_copy...() in net/*

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index c0e3427..da6683f 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1342,7 +1342,7 @@
 
 		end = start + skb_shinfo(skb)->frags[i].size;
 		if ((copy = end - offset) > 0) {
-			unsigned int csum2;
+			__wsum csum2;
 			u8 *vaddr;
 			skb_frag_t *frag = &skb_shinfo(skb)->frags[i];