[SK_BUFF]: Introduce skb_transport_offset()

For the quite common 'skb->h.raw - skb->data' sequence.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 13739cd8206f..13875e8419a7 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -435,7 +435,7 @@ static void udp4_hwcsum_outgoing(struct sock *sk, struct sk_buff *skb,
                  * fragments on the socket so that all csums of sk_buffs
                  * should be together
                  */
-                offset = skb->h.raw - skb->data;
+                offset = skb_transport_offset(skb);
                 skb->csum = skb_checksum(skb, offset, skb->len - offset, 0);
 
                 skb->ip_summed = CHECKSUM_NONE;