[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>

include/linux/skbuff.h

@@ -1199,8 +1199,7 @@ static inline int skb_add_data(struct sk_buff *skb,
 
 	if (skb->ip_summed == CHECKSUM_NONE) {
 		int err = 0;
-		unsigned int csum = csum_and_copy_from_user(from,
-							    skb_put(skb, copy),
+		__wsum csum = csum_and_copy_from_user(from, skb_put(skb, copy),
 							    copy, 0, &err);
 		if (!err) {
 			skb->csum = csum_block_add(skb->csum, csum, off);

include/net/sock.h

@@ -1088,7 +1088,7 @@ static inline int skb_copy_to_page(struct sock *sk, char __user *from,
 {
 	if (skb->ip_summed == CHECKSUM_NONE) {
 		int err = 0;
-		unsigned int csum = csum_and_copy_from_user(from,
+		__wsum csum = csum_and_copy_from_user(from,
 						     page_address(page) + off,
 							    copy, 0, &err);
 		if (err)

net/core/datagram.c

@@ -321,7 +321,7 @@ fault:
 
 static int skb_copy_and_csum_datagram(const struct sk_buff *skb, int offset,
 				      u8 __user *to, int len,
-				      unsigned int *csump)
+				      __wsum *csump)
 {
 	int start = skb_headlen(skb);
 	int pos = 0;
@@ -350,7 +350,7 @@ static int skb_copy_and_csum_datagram(const struct sk_buff *skb, int offset,
 
 		end = start + skb_shinfo(skb)->frags[i].size;
 		if ((copy = end - offset) > 0) {
-			unsigned int csum2;
+			__wsum csum2;
 			int err = 0;
 			u8  *vaddr;
 			skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
@@ -386,7 +386,7 @@ static int skb_copy_and_csum_datagram(const struct sk_buff *skb, int offset,
 
 			end = start + list->len;
 			if ((copy = end - offset) > 0) {
-				unsigned int csum2 = 0;
+				__wsum csum2 = 0;
 				if (copy > len)
 					copy = len;
 				if (skb_copy_and_csum_datagram(list,

net/core/skbuff.c

@@ -1342,7 +1342,7 @@ unsigned int skb_copy_and_csum_bits(const struct sk_buff *skb, int offset,
 
 		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];
 

net/ipv4/ip_output.c

@@ -1314,7 +1314,7 @@ void ip_flush_pending_frames(struct sock *sk)
 static int ip_reply_glue_bits(void *dptr, char *to, int offset, 
 			      int len, int odd, struct sk_buff *skb)
 {
-	unsigned int csum;
+	__wsum csum;
 
 	csum = csum_partial_copy_nocheck(dptr+offset, to, len, 0);
 	skb->csum = csum_block_add(skb->csum, csum, odd);