From 82e91ffef60e6eba9848fe149ce1eecd2b5aef12 Mon Sep 17 00:00:00 2001
From: Thomas Graf <tgraf@suug.ch>
Date: Thu, 9 Nov 2006 15:19:14 -0800
Subject: [NET]: Turn nfmark into generic mark

nfmark is being used in various subsystems and has become
the defacto mark field for all kinds of packets. Therefore
it makes sense to rename it to `mark' and remove the
dependency on CONFIG_NETFILTER.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/skbuff.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'net/core/skbuff.c')

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index b8b10635804..b3dea1ef953 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -473,8 +473,8 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
 #endif
 	C(protocol);
 	n->destructor = NULL;
+	C(mark);
 #ifdef CONFIG_NETFILTER
-	C(nfmark);
 	C(nfct);
 	nf_conntrack_get(skb->nfct);
 	C(nfctinfo);
@@ -534,8 +534,8 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	new->pkt_type	= old->pkt_type;
 	new->tstamp	= old->tstamp;
 	new->destructor = NULL;
+	new->mark	= old->mark;
 #ifdef CONFIG_NETFILTER
-	new->nfmark	= old->nfmark;
 	new->nfct	= old->nfct;
 	nf_conntrack_get(old->nfct);
 	new->nfctinfo	= old->nfctinfo;
-- 
cgit v1.2.3


From d3bc23e7ee9db8023dff5a86bb3b0069ed018789 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 14 Nov 2006 21:24:49 -0800
Subject: [NET]: Annotate callers of csum_fold() in net/*

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/datagram.c        | 8 ++++----
 net/core/dev.c             | 4 ++--
 net/core/netpoll.c         | 2 +-
 net/core/skbuff.c          | 4 ++--
 net/ipv4/icmp.c            | 4 ++--
 net/ipv4/igmp.c            | 2 +-
 net/ipv4/ip_gre.c          | 4 ++--
 net/ipv4/ip_output.c       | 2 +-
 net/ipv4/ipmr.c            | 2 +-
 net/ipv4/ipvs/ip_vs_core.c | 2 +-
 net/ipv4/netfilter.c       | 2 +-
 net/ipv4/tcp.c             | 8 +++++---
 net/sunrpc/socklib.c       | 2 +-
 13 files changed, 24 insertions(+), 22 deletions(-)

(limited to 'net/core/skbuff.c')

diff --git a/net/core/datagram.c b/net/core/datagram.c
index f558c61aecc..e5a05a046fe 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -413,9 +413,9 @@ fault:
 
 unsigned int __skb_checksum_complete(struct sk_buff *skb)
 {
-	unsigned int sum;
+	__sum16 sum;
 
-	sum = (u16)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum));
+	sum = csum_fold(skb_checksum(skb, 0, skb->len, skb->csum));
 	if (likely(!sum)) {
 		if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
 			netdev_rx_csum_fault(skb->dev);
@@ -441,7 +441,7 @@ EXPORT_SYMBOL(__skb_checksum_complete);
 int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb,
 				     int hlen, struct iovec *iov)
 {
-	unsigned int csum;
+	__wsum csum;
 	int chunk = skb->len - hlen;
 
 	/* Skip filled elements.
@@ -460,7 +460,7 @@ int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb,
 		if (skb_copy_and_csum_datagram(skb, hlen, iov->iov_base,
 					       chunk, &csum))
 			goto fault;
-		if ((unsigned short)csum_fold(csum))
+		if (csum_fold(csum))
 			goto csum_error;
 		if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
 			netdev_rx_csum_fault(skb->dev);
diff --git a/net/core/dev.c b/net/core/dev.c
index a7be106d0fd..1a36b17f4b5 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1169,7 +1169,7 @@ EXPORT_SYMBOL(netif_device_attach);
  */
 int skb_checksum_help(struct sk_buff *skb)
 {
-	unsigned int csum;
+	__wsum csum;
 	int ret = 0, offset = skb->h.raw - skb->data;
 
 	if (skb->ip_summed == CHECKSUM_COMPLETE)
@@ -1193,7 +1193,7 @@ int skb_checksum_help(struct sk_buff *skb)
 	BUG_ON(offset <= 0);
 	BUG_ON(skb->csum + 2 > offset);
 
-	*(u16*)(skb->h.raw + skb->csum) = csum_fold(csum);
+	*(__sum16*)(skb->h.raw + skb->csum) = csum_fold(csum);
 
 out_set_summed:
 	skb->ip_summed = CHECKSUM_NONE;
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 523141ee920..edd3246873e 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -88,7 +88,7 @@ static int checksum_udp(struct sk_buff *skb, struct udphdr *uh,
 	psum = csum_tcpudp_nofold(saddr, daddr, ulen, IPPROTO_UDP, 0);
 
 	if (skb->ip_summed == CHECKSUM_COMPLETE &&
-	    !(u16)csum_fold(csum_add(psum, skb->csum)))
+	    !csum_fold(csum_add(psum, skb->csum)))
 		return 0;
 
 	skb->csum = psum;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index b3dea1ef953..dfa02cc8d68 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1396,7 +1396,7 @@ unsigned int skb_copy_and_csum_bits(const struct sk_buff *skb, int offset,
 
 void skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to)
 {
-	unsigned int csum;
+	__wsum csum;
 	long csstart;
 
 	if (skb->ip_summed == CHECKSUM_PARTIAL)
@@ -1416,7 +1416,7 @@ void skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to)
 	if (skb->ip_summed == CHECKSUM_PARTIAL) {
 		long csstuff = csstart + skb->csum;
 
-		*((unsigned short *)(to + csstuff)) = csum_fold(csum);
+		*((__sum16 *)(to + csstuff)) = csum_fold(csum);
 	}
 }
 
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index b39a37a4754..cb9da0842b7 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -356,7 +356,7 @@ static void icmp_push_reply(struct icmp_bxm *icmp_param,
 		ip_flush_pending_frames(icmp_socket->sk);
 	else if ((skb = skb_peek(&icmp_socket->sk->sk_write_queue)) != NULL) {
 		struct icmphdr *icmph = skb->h.icmph;
-		unsigned int csum = 0;
+		__wsum csum = 0;
 		struct sk_buff *skb1;
 
 		skb_queue_walk(&icmp_socket->sk->sk_write_queue, skb1) {
@@ -931,7 +931,7 @@ int icmp_rcv(struct sk_buff *skb)
 
 	switch (skb->ip_summed) {
 	case CHECKSUM_COMPLETE:
-		if (!(u16)csum_fold(skb->csum))
+		if (!csum_fold(skb->csum))
 			break;
 		/* fall through */
 	case CHECKSUM_NONE:
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 6eee71647b7..0017ccb01d6 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -932,7 +932,7 @@ int igmp_rcv(struct sk_buff *skb)
 
 	switch (skb->ip_summed) {
 	case CHECKSUM_COMPLETE:
-		if (!(u16)csum_fold(skb->csum))
+		if (!csum_fold(skb->csum))
 			break;
 		/* fall through */
 	case CHECKSUM_NONE:
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 25221146deb..2bf54adee8c 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -557,7 +557,7 @@ static int ipgre_rcv(struct sk_buff *skb)
 	struct iphdr *iph;
 	u8     *h;
 	__be16    flags;
-	u16    csum = 0;
+	__sum16   csum = 0;
 	__be32 key = 0;
 	u32    seqno = 0;
 	struct ip_tunnel *tunnel;
@@ -580,7 +580,7 @@ static int ipgre_rcv(struct sk_buff *skb)
 		if (flags&GRE_CSUM) {
 			switch (skb->ip_summed) {
 			case CHECKSUM_COMPLETE:
-				csum = (u16)csum_fold(skb->csum);
+				csum = csum_fold(skb->csum);
 				if (!csum)
 					break;
 				/* fall through */
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 90942a384a4..5f3e35c0363 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1384,7 +1384,7 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar
 		       &ipc, rt, MSG_DONTWAIT);
 	if ((skb = skb_peek(&sk->sk_write_queue)) != NULL) {
 		if (arg->csumoffset >= 0)
-			*((u16 *)skb->h.raw + arg->csumoffset) = csum_fold(csum_add(skb->csum, arg->csum));
+			*((__sum16 *)skb->h.raw + arg->csumoffset) = csum_fold(csum_add(skb->csum, arg->csum));
 		skb->ip_summed = CHECKSUM_NONE;
 		ip_push_pending_frames(sk);
 	}
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 97cfa97c8ab..efcf45ecc81 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1493,7 +1493,7 @@ static int pim_rcv(struct sk_buff * skb)
         if (pim->type != ((PIM_VERSION<<4)|(PIM_REGISTER)) ||
 	    (pim->flags&PIM_NULL_REGISTER) ||
 	    (ip_compute_csum((void *)pim, sizeof(*pim)) != 0 && 
-	     (u16)csum_fold(skb_checksum(skb, 0, skb->len, 0)))) 
+	     csum_fold(skb_checksum(skb, 0, skb->len, 0))))
 		goto drop;
 
 	/* check if the inner packet is destined to mcast group */
diff --git a/net/ipv4/ipvs/ip_vs_core.c b/net/ipv4/ipvs/ip_vs_core.c
index 1445bb47fea..fac2dffd667 100644
--- a/net/ipv4/ipvs/ip_vs_core.c
+++ b/net/ipv4/ipvs/ip_vs_core.c
@@ -538,7 +538,7 @@ static unsigned int ip_vs_post_routing(unsigned int hooknum,
 
 u16 ip_vs_checksum_complete(struct sk_buff *skb, int offset)
 {
-	return (u16) csum_fold(skb_checksum(skb, offset, skb->len - offset, 0));
+	return csum_fold(skb_checksum(skb, offset, skb->len - offset, 0));
 }
 
 static inline struct sk_buff *
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index e49441ac357..b797a37c01c 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -172,7 +172,7 @@ unsigned int nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
 	case CHECKSUM_COMPLETE:
 		if (hook != NF_IP_PRE_ROUTING && hook != NF_IP_LOCAL_IN)
 			break;
-		if ((protocol == 0 && !(u16)csum_fold(skb->csum)) ||
+		if ((protocol == 0 && !csum_fold(skb->csum)) ||
 		    !csum_tcpudp_magic(iph->saddr, iph->daddr,
 			    	       skb->len - dataoff, protocol,
 				       skb->csum)) {
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index dadef867a3b..168f9de906b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2162,7 +2162,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features)
 	struct tcphdr *th;
 	unsigned thlen;
 	unsigned int seq;
-	unsigned int delta;
+	__be32 delta;
 	unsigned int oldlen;
 	unsigned int len;
 
@@ -2215,7 +2215,8 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features)
 	do {
 		th->fin = th->psh = 0;
 
-		th->check = ~csum_fold(th->check + delta);
+		th->check = ~csum_fold((__force __wsum)((__force u32)th->check +
+				       (__force u32)delta));
 		if (skb->ip_summed != CHECKSUM_PARTIAL)
 			th->check = csum_fold(csum_partial(skb->h.raw, thlen,
 							   skb->csum));
@@ -2229,7 +2230,8 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features)
 	} while (skb->next);
 
 	delta = htonl(oldlen + (skb->tail - skb->h.raw) + skb->data_len);
-	th->check = ~csum_fold(th->check + delta);
+	th->check = ~csum_fold((__force __wsum)((__force u32)th->check +
+				(__force u32)delta));
 	if (skb->ip_summed != CHECKSUM_PARTIAL)
 		th->check = csum_fold(csum_partial(skb->h.raw, thlen,
 						   skb->csum));
diff --git a/net/sunrpc/socklib.c b/net/sunrpc/socklib.c
index 6f17527b9e6..61a038fc30c 100644
--- a/net/sunrpc/socklib.c
+++ b/net/sunrpc/socklib.c
@@ -166,7 +166,7 @@ int csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
 	}
 	if (desc.count)
 		return -1;
-	if ((unsigned short)csum_fold(desc.csum))
+	if (csum_fold(desc.csum))
 		return -1;
 	if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
 		netdev_rx_csum_fault(skb->dev);
-- 
cgit v1.2.3


From 44bb93633f57a55979f3c2589b10fd6a2bfc7c08 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 14 Nov 2006 21:36:14 -0800
Subject: [NET]: Annotate csum_partial() callers in net/*

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/socket.h     | 2 +-
 include/linux/sunrpc/xdr.h | 2 +-
 net/core/iovec.c           | 4 ++--
 net/core/skbuff.c          | 2 +-
 net/ipv4/ip_output.c       | 8 ++++----
 net/unix/af_unix.c         | 3 ++-
 6 files changed, 11 insertions(+), 10 deletions(-)

(limited to 'net/core/skbuff.c')

diff --git a/include/linux/socket.h b/include/linux/socket.h
index 592b6667982..92cd38efad7 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -293,7 +293,7 @@ extern int memcpy_fromiovecend(unsigned char *kdata, struct iovec *iov,
 extern int csum_partial_copy_fromiovecend(unsigned char *kdata, 
 					  struct iovec *iov, 
 					  int offset, 
-					  unsigned int len, int *csump);
+					  unsigned int len, __wsum *csump);
 
 extern int verify_iovec(struct msghdr *m, struct iovec *iov, char *address, int mode);
 extern int memcpy_toiovec(struct iovec *v, unsigned char *kdata, int len);
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index ac69e551160..9a527c36439 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -151,7 +151,7 @@ typedef struct {
 	struct sk_buff	*skb;
 	unsigned int	offset;
 	size_t		count;
-	unsigned int	csum;
+	__wsum		csum;
 } skb_reader_t;
 
 typedef size_t (*skb_read_actor_t)(skb_reader_t *desc, void *to, size_t len);
diff --git a/net/core/iovec.c b/net/core/iovec.c
index 65e4b56fbc7..04b249c40b5 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -158,9 +158,9 @@ int memcpy_fromiovecend(unsigned char *kdata, struct iovec *iov, int offset,
  *	call to this function will be unaligned also.
  */
 int csum_partial_copy_fromiovecend(unsigned char *kdata, struct iovec *iov,
-				 int offset, unsigned int len, int *csump)
+				 int offset, unsigned int len, __wsum *csump)
 {
-	int csum = *csump;
+	__wsum csum = *csump;
 	int partial_cnt = 0, err = 0;
 
 	/* Skip over the finished iovecs */
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index dfa02cc8d68..c0e3427057f 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1265,7 +1265,7 @@ unsigned int skb_checksum(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];
 
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 5f3e35c0363..f9194f7e39d 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -682,7 +682,7 @@ ip_generic_getfrag(void *from, char *to, int offset, int len, int odd, struct sk
 		if (memcpy_fromiovecend(to, iov, offset, len) < 0)
 			return -EFAULT;
 	} else {
-		unsigned int csum = 0;
+		__wsum csum = 0;
 		if (csum_partial_copy_fromiovecend(to, iov, offset, len, &csum) < 0)
 			return -EFAULT;
 		skb->csum = csum_block_add(skb->csum, csum, odd);
@@ -690,11 +690,11 @@ ip_generic_getfrag(void *from, char *to, int offset, int len, int odd, struct sk
 	return 0;
 }
 
-static inline unsigned int
+static inline __wsum
 csum_page(struct page *page, int offset, int copy)
 {
 	char *kaddr;
-	unsigned int csum;
+	__wsum csum;
 	kaddr = kmap(page);
 	csum = csum_partial(kaddr + offset, copy, 0);
 	kunmap(page);
@@ -1166,7 +1166,7 @@ ssize_t	ip_append_page(struct sock *sk, struct page *page,
 		}
 
 		if (skb->ip_summed == CHECKSUM_NONE) {
-			unsigned int csum;
+			__wsum csum;
 			csum = csum_page(page, offset, len);
 			skb->csum = csum_block_add(skb->csum, csum, skb->len);
 		}
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index b43a27828df..2f208c7f4d4 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -151,8 +151,9 @@ static inline void unix_set_secdata(struct scm_cookie *scm, struct sk_buff *skb)
  *    each socket state is protected by separate rwlock.
  */
 
-static inline unsigned unix_hash_fold(unsigned hash)
+static inline unsigned unix_hash_fold(__wsum n)
 {
+	unsigned hash = (__force unsigned)n;
 	hash ^= hash>>16;
 	hash ^= hash>>8;
 	return hash&(UNIX_HASH_SIZE-1);
-- 
cgit v1.2.3


From 5084205faf45384fff25c4cf77dd5c96279283ad Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 14 Nov 2006 21:36:34 -0800
Subject: [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 | 3 +--
 include/net/sock.h     | 2 +-
 net/core/datagram.c    | 6 +++---
 net/core/skbuff.c      | 2 +-
 net/ipv4/ip_output.c   | 2 +-
 5 files changed, 7 insertions(+), 8 deletions(-)

(limited to 'net/core/skbuff.c')

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index e3ae544b395..64fa7f4c702 100644
--- a/include/linux/skbuff.h
+++ b/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);
diff --git a/include/net/sock.h b/include/net/sock.h
index 35ffbdd35d3..dc4b92b8abe 100644
--- a/include/net/sock.h
+++ b/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)
diff --git a/net/core/datagram.c b/net/core/datagram.c
index e5a05a046fe..0d9c9bac400 100644
--- a/net/core/datagram.c
+++ b/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,
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index c0e3427057f..da6683f4b31 100644
--- a/net/core/skbuff.c
+++ b/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];
 
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index f9194f7e39d..1da3d32f828 100644
--- a/net/ipv4/ip_output.c
+++ b/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);
-- 
cgit v1.2.3


From 5f92a7388a29594d6c365b23a48d4bb8299a3ea7 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 14 Nov 2006 21:36:54 -0800
Subject: [NET]: Annotate callers of the reset of checksum.h stuff.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/skbuff.c    | 2 +-
 net/ipv4/icmp.c      | 2 +-
 net/ipv4/ip_gre.c    | 2 +-
 net/ipv6/icmp.c      | 2 +-
 net/ipv6/raw.c       | 2 +-
 net/sunrpc/socklib.c | 5 +++--
 6 files changed, 8 insertions(+), 7 deletions(-)

(limited to 'net/core/skbuff.c')

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index da6683f4b31..6e8c15b39eb 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1294,7 +1294,7 @@ unsigned int skb_checksum(const struct sk_buff *skb, int offset,
 
 			end = start + list->len;
 			if ((copy = end - offset) > 0) {
-				unsigned int csum2;
+				__wsum csum2;
 				if (copy > len)
 					copy = len;
 				csum2 = skb_checksum(list, offset - start,
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index cb9da0842b7..40cf0d0e1b8 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -332,7 +332,7 @@ static int icmp_glue_bits(void *from, char *to, int offset, int len, int odd,
 			  struct sk_buff *skb)
 {
 	struct icmp_bxm *icmp_param = (struct icmp_bxm *)from;
-	unsigned int csum;
+	__wsum csum;
 
 	csum = skb_copy_and_csum_bits(icmp_param->skb,
 				      icmp_param->offset + offset,
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 2bf54adee8c..476cb6084c7 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -877,7 +877,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 		}
 		if (tunnel->parms.o_flags&GRE_CSUM) {
 			*ptr = 0;
-			*(__be16*)ptr = ip_compute_csum((void*)(iph+1), skb->len - sizeof(struct iphdr));
+			*(__sum16*)ptr = ip_compute_csum((void*)(iph+1), skb->len - sizeof(struct iphdr));
 		}
 	}
 
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 4ab8acf37b5..3dcc4b7f41b 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -262,7 +262,7 @@ static int icmpv6_getfrag(void *from, char *to, int offset, int len, int odd, st
 {
 	struct icmpv6_msg *msg = (struct icmpv6_msg *) from;
 	struct sk_buff *org_skb = msg->skb;
-	__u32 csum = 0;
+	__wsum csum = 0;
 
 	csum = skb_copy_and_csum_bits(org_skb, msg->offset + offset,
 				      to, len, csum);
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index cee5db27e8b..9b21d67ca48 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -530,7 +530,7 @@ static int rawv6_push_pending_frames(struct sock *sk, struct flowi *fl,
 
 	/* in case cksum was not initialized */
 	if (unlikely(csum))
-		tmp_csum = csum_sub(tmp_csum, csum);
+		tmp_csum = csum_sub(tmp_csum, csum_unfold(csum));
 
 	csum = csum_ipv6_magic(&fl->fl6_src,
 				   &fl->fl6_dst,
diff --git a/net/sunrpc/socklib.c b/net/sunrpc/socklib.c
index 61a038fc30c..2635c543ba0 100644
--- a/net/sunrpc/socklib.c
+++ b/net/sunrpc/socklib.c
@@ -45,7 +45,8 @@ static size_t skb_read_bits(skb_reader_t *desc, void *to, size_t len)
  */
 static size_t skb_read_and_csum_bits(skb_reader_t *desc, void *to, size_t len)
 {
-	unsigned int	csum2, pos;
+	unsigned int pos;
+	__wsum csum2;
 
 	if (len > desc->count)
 		len = desc->count;
@@ -160,7 +161,7 @@ int csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
 	if (xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_and_csum_bits) < 0)
 		return -1;
 	if (desc.offset != skb->len) {
-		unsigned int csum2;
+		__wsum csum2;
 		csum2 = skb_checksum(skb, desc.offset, skb->len - desc.offset, 0);
 		desc.csum = csum_block_add(desc.csum, csum2, desc.offset);
 	}
-- 
cgit v1.2.3


From 2bbbc86890ac4c911c5057f69af93853e52a42a8 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 14 Nov 2006 21:37:14 -0800
Subject: [NET]: Annotate skb_checksum() and callers.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h | 4 ++--
 net/core/skbuff.c      | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'net/core/skbuff.c')

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 64fa7f4c702..784129fb61d 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1334,8 +1334,8 @@ extern int	       skb_copy_and_csum_datagram_iovec(struct sk_buff *skb,
 extern void	       skb_free_datagram(struct sock *sk, struct sk_buff *skb);
 extern void	       skb_kill_datagram(struct sock *sk, struct sk_buff *skb,
 					 unsigned int flags);
-extern unsigned int    skb_checksum(const struct sk_buff *skb, int offset,
-				    int len, unsigned int csum);
+extern __wsum	       skb_checksum(const struct sk_buff *skb, int offset,
+				    int len, __wsum csum);
 extern int	       skb_copy_bits(const struct sk_buff *skb, int offset,
 				     void *to, int len);
 extern int	       skb_store_bits(const struct sk_buff *skb, int offset,
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 6e8c15b39eb..be9b541f536 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1240,8 +1240,8 @@ EXPORT_SYMBOL(skb_store_bits);
 
 /* Checksum skb data. */
 
-unsigned int skb_checksum(const struct sk_buff *skb, int offset,
-			  int len, unsigned int csum)
+__wsum skb_checksum(const struct sk_buff *skb, int offset,
+			  int len, __wsum csum)
 {
 	int start = skb_headlen(skb);
 	int i, copy = start - offset;
-- 
cgit v1.2.3


From 81d77662763ae527ba3a9b9275467901aaab7dfd Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 14 Nov 2006 21:37:33 -0800
Subject: [NET]: Annotate skb_copy_and_csum_bits() and callers.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h | 4 ++--
 net/core/skbuff.c      | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'net/core/skbuff.c')

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 784129fb61d..874ca029fbb 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1340,9 +1340,9 @@ extern int	       skb_copy_bits(const struct sk_buff *skb, int offset,
 				     void *to, int len);
 extern int	       skb_store_bits(const struct sk_buff *skb, int offset,
 				      void *from, int len);
-extern unsigned int    skb_copy_and_csum_bits(const struct sk_buff *skb,
+extern __wsum	       skb_copy_and_csum_bits(const struct sk_buff *skb,
 					      int offset, u8 *to, int len,
-					      unsigned int csum);
+					      __wsum csum);
 extern void	       skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to);
 extern void	       skb_split(struct sk_buff *skb,
 				 struct sk_buff *skb1, const u32 len);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index be9b541f536..07c25d60192 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1315,8 +1315,8 @@ __wsum skb_checksum(const struct sk_buff *skb, int offset,
 
 /* Both of above in one bottle. */
 
-unsigned int skb_copy_and_csum_bits(const struct sk_buff *skb, int offset,
-				    u8 *to, int len, unsigned int csum)
+__wsum skb_copy_and_csum_bits(const struct sk_buff *skb, int offset,
+				    u8 *to, int len, __wsum csum)
 {
 	int start = skb_headlen(skb);
 	int i, copy = start - offset;
@@ -1368,7 +1368,7 @@ unsigned int skb_copy_and_csum_bits(const struct sk_buff *skb, int offset,
 		struct sk_buff *list = skb_shinfo(skb)->frag_list;
 
 		for (; list; list = list->next) {
-			unsigned int csum2;
+			__wsum csum2;
 			int end;
 
 			BUG_TRAP(start <= offset + len);
-- 
cgit v1.2.3


From ff1dcadb1b55dbf471c5ed109dbbdf06bd19ef3b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 20 Nov 2006 18:07:29 -0800
Subject: [NET]: Split skb->csum

... into anonymous union of __wsum and __u32 (csum and csum_offset resp.)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/cassini.c           | 2 +-
 drivers/net/e1000/e1000_main.c  | 2 +-
 drivers/net/ixgb/ixgb_main.c    | 2 +-
 drivers/net/myri10ge/myri10ge.c | 2 +-
 drivers/net/sk98lin/skge.c      | 4 ++--
 drivers/net/skge.c              | 2 +-
 drivers/net/sky2.c              | 2 +-
 drivers/net/sungem.c            | 2 +-
 drivers/net/sunhme.c            | 2 +-
 include/linux/skbuff.h          | 5 ++++-
 net/core/dev.c                  | 4 ++--
 net/core/skbuff.c               | 2 +-
 net/ipv4/tcp_ipv4.c             | 4 ++--
 net/ipv4/udp.c                  | 2 +-
 net/ipv6/tcp_ipv6.c             | 4 ++--
 15 files changed, 22 insertions(+), 19 deletions(-)

(limited to 'net/core/skbuff.c')

diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c
index 521c5b71023..fd2cc13f7d9 100644
--- a/drivers/net/cassini.c
+++ b/drivers/net/cassini.c
@@ -2825,7 +2825,7 @@ static inline int cas_xmit_tx_ringN(struct cas *cp, int ring,
 		u64 csum_start_off, csum_stuff_off;
 
 		csum_start_off = (u64) (skb->h.raw - skb->data);
-		csum_stuff_off = (u64) ((skb->h.raw + skb->csum) - skb->data);
+		csum_stuff_off = csum_start_off + skb->csum_offset;
 
 		ctrl =  TX_DESC_CSUM_EN |
 			CAS_BASE(TX_DESC_CSUM_START, csum_start_off) |
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 7a0828869ec..32dde0adb68 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -2826,7 +2826,7 @@ e1000_tx_csum(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
 		context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
 
 		context_desc->upper_setup.tcp_fields.tucss = css;
-		context_desc->upper_setup.tcp_fields.tucso = css + skb->csum;
+		context_desc->upper_setup.tcp_fields.tucso = css + skb->csum_offset;
 		context_desc->upper_setup.tcp_fields.tucse = 0;
 		context_desc->tcp_seg_setup.data = 0;
 		context_desc->cmd_and_length = cpu_to_le32(E1000_TXD_CMD_DEXT);
diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index e09f575a3a3..7b127212e62 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -1249,7 +1249,7 @@ ixgb_tx_csum(struct ixgb_adapter *adapter, struct sk_buff *skb)
 	if(likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
 		struct ixgb_buffer *buffer_info;
 		css = skb->h.raw - skb->data;
-		cso = (skb->h.raw + skb->csum) - skb->data;
+		cso = css + skb->csum_offset;
 
 		i = adapter->tx_ring.next_to_use;
 		context_desc = IXGB_CONTEXT_DESC(adapter->tx_ring, i);
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index 806081b5973..36350e6db1c 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -1955,7 +1955,7 @@ again:
 	flags = (MXGEFW_FLAGS_NO_TSO | MXGEFW_FLAGS_FIRST);
 	if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
 		cksum_offset = (skb->h.raw - skb->data);
-		pseudo_hdr_offset = (skb->h.raw + skb->csum) - skb->data;
+		pseudo_hdr_offset = cksum_offset + skb->csum_offset;
 		/* If the headers are excessively large, then we must
 		 * fall back to a software checksum */
 		if (unlikely(cksum_offset > 255 || pseudo_hdr_offset > 127)) {
diff --git a/drivers/net/sk98lin/skge.c b/drivers/net/sk98lin/skge.c
index a5d41ebc9fb..12cbfd190dd 100644
--- a/drivers/net/sk98lin/skge.c
+++ b/drivers/net/sk98lin/skge.c
@@ -1562,7 +1562,7 @@ struct sk_buff	*pMessage)	/* pointer to send-message              */
 
 	if (pMessage->ip_summed == CHECKSUM_PARTIAL) {
 		u16 hdrlen = pMessage->h.raw - pMessage->data;
-		u16 offset = hdrlen + pMessage->csum;
+		u16 offset = hdrlen + pMessage->csum_offset;
 
 		if ((pMessage->h.ipiph->protocol == IPPROTO_UDP ) &&
 			(pAC->GIni.GIChipRev == 0) &&
@@ -1681,7 +1681,7 @@ struct sk_buff	*pMessage)	/* pointer to send-message              */
 	*/
 	if (pMessage->ip_summed == CHECKSUM_PARTIAL) {
 		u16 hdrlen = pMessage->h.raw - pMessage->data;
-		u16 offset = hdrlen + pMessage->csum;
+		u16 offset = hdrlen + pMessage->csum_offset;
 
 		Control = BMU_STFWD;
 
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index 27b537c8d5e..5513907e839 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -2565,7 +2565,7 @@ static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev)
 
 		td->csum_offs = 0;
 		td->csum_start = offset;
-		td->csum_write = offset + skb->csum;
+		td->csum_write = offset + skb->csum_offset;
 	} else
 		control = BMU_CHECK;
 
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 0ef1848b976..842abd9396c 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1350,7 +1350,7 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
 		u32 tcpsum;
 
 		tcpsum = offset << 16;		/* sum start */
-		tcpsum |= offset + skb->csum;	/* sum write */
+		tcpsum |= offset + skb->csum_offset;	/* sum write */
 
 		ctrl = CALSUM | WR_SUM | INIT_SUM | LOCK_SUM;
 		if (skb->nh.iph->protocol == IPPROTO_UDP)
diff --git a/drivers/net/sungem.c b/drivers/net/sungem.c
index 253e96e7ad2..334c6cfd659 100644
--- a/drivers/net/sungem.c
+++ b/drivers/net/sungem.c
@@ -1030,7 +1030,7 @@ static int gem_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		u64 csum_start_off, csum_stuff_off;
 
 		csum_start_off = (u64) (skb->h.raw - skb->data);
-		csum_stuff_off = (u64) ((skb->h.raw + skb->csum) - skb->data);
+		csum_stuff_off = csum_start_off + skb->csum_offset;
 
 		ctrl = (TXDCTRL_CENAB |
 			(csum_start_off << 15) |
diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c
index 9d7cd130c19..ec432ea879f 100644
--- a/drivers/net/sunhme.c
+++ b/drivers/net/sunhme.c
@@ -2272,7 +2272,7 @@ static int happy_meal_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		u32 csum_start_off, csum_stuff_off;
 
 		csum_start_off = (u32) (skb->h.raw - skb->data);
-		csum_stuff_off = (u32) ((skb->h.raw + skb->csum) - skb->data);
+		csum_stuff_off = csum_start_off + skb->csum_offset;
 
 		tx_flags = (TXFLAG_OWN | TXFLAG_CSENABLE |
 			    ((csum_start_off << 14) & TXFLAG_CSBUFBEGIN) |
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index fcab543d79a..14ec16d2d9b 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -274,7 +274,10 @@ struct sk_buff {
 	unsigned int		len,
 				data_len,
 				mac_len;
-	__wsum			csum;
+	union {
+		__wsum		csum;
+		__u32		csum_offset;
+	};
 	__u32			priority;
 	__u8			local_df:1,
 				cloned:1,
diff --git a/net/core/dev.c b/net/core/dev.c
index 1a36b17f4b5..59d058a3b50 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1191,9 +1191,9 @@ int skb_checksum_help(struct sk_buff *skb)
 
 	offset = skb->tail - skb->h.raw;
 	BUG_ON(offset <= 0);
-	BUG_ON(skb->csum + 2 > offset);
+	BUG_ON(skb->csum_offset + 2 > offset);
 
-	*(__sum16*)(skb->h.raw + skb->csum) = csum_fold(csum);
+	*(__sum16*)(skb->h.raw + skb->csum_offset) = csum_fold(csum);
 
 out_set_summed:
 	skb->ip_summed = CHECKSUM_NONE;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 07c25d60192..a90bc439488 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1414,7 +1414,7 @@ void skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to)
 					      skb->len - csstart, 0);
 
 	if (skb->ip_summed == CHECKSUM_PARTIAL) {
-		long csstuff = csstart + skb->csum;
+		long csstuff = csstart + skb->csum_offset;
 
 		*((__sum16 *)(to + csstuff)) = csum_fold(csum);
 	}
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index e9d467124c4..4913f25e5ad 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -504,7 +504,7 @@ void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb)
 	if (skb->ip_summed == CHECKSUM_PARTIAL) {
 		th->check = ~tcp_v4_check(th, len,
 					  inet->saddr, inet->daddr, 0);
-		skb->csum = offsetof(struct tcphdr, check);
+		skb->csum_offset = offsetof(struct tcphdr, check);
 	} else {
 		th->check = tcp_v4_check(th, len, inet->saddr, inet->daddr,
 					 csum_partial((char *)th,
@@ -526,7 +526,7 @@ int tcp_v4_gso_send_check(struct sk_buff *skb)
 
 	th->check = 0;
 	th->check = ~tcp_v4_check(th, skb->len, iph->saddr, iph->daddr, 0);
-	skb->csum = offsetof(struct tcphdr, check);
+	skb->csum_offset = offsetof(struct tcphdr, check);
 	skb->ip_summed = CHECKSUM_PARTIAL;
 	return 0;
 }
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 28e4cf662ce..1807a30694d 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -422,7 +422,7 @@ static void udp4_hwcsum_outgoing(struct sock *sk, struct sk_buff *skb,
 		/*
 		 * Only one fragment on the socket.
 		 */
-		skb->csum = offsetof(struct udphdr, check);
+		skb->csum_offset = offsetof(struct udphdr, check);
 		uh->check = ~csum_tcpudp_magic(src, dst, len, IPPROTO_UDP, 0);
 	} else {
 		/*
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 0adb337c4b7..517c50024bf 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -948,7 +948,7 @@ static void tcp_v6_send_check(struct sock *sk, int len, struct sk_buff *skb)
 
 	if (skb->ip_summed == CHECKSUM_PARTIAL) {
 		th->check = ~csum_ipv6_magic(&np->saddr, &np->daddr, len, IPPROTO_TCP,  0);
-		skb->csum = offsetof(struct tcphdr, check);
+		skb->csum_offset = offsetof(struct tcphdr, check);
 	} else {
 		th->check = csum_ipv6_magic(&np->saddr, &np->daddr, len, IPPROTO_TCP, 
 					    csum_partial((char *)th, th->doff<<2, 
@@ -970,7 +970,7 @@ static int tcp_v6_gso_send_check(struct sk_buff *skb)
 	th->check = 0;
 	th->check = ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, skb->len,
 				     IPPROTO_TCP, 0);
-	skb->csum = offsetof(struct tcphdr, check);
+	skb->csum_offset = offsetof(struct tcphdr, check);
 	skb->ip_summed = CHECKSUM_PARTIAL;
 	return 0;
 }
-- 
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