[SK_BUFF]: Introduce skb_network_offset()

For the quite common 'skb->nh.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/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c
index fadb9291bc1b..0c2b3752e46e 100644
--- a/drivers/isdn/i4l/isdn_net.c
+++ b/drivers/isdn/i4l/isdn_net.c
@@ -1121,7 +1121,7 @@ isdn_net_adjust_hdr(struct sk_buff *skb, struct net_device *dev)
         if (!skb)
                 return;
         if (lp->p_encap == ISDN_NET_ENCAP_ETHER) {
-                int pullsize = (ulong)skb->nh.raw - (ulong)skb->data - ETH_HLEN;
+                const int pullsize = skb_network_offset(skb) - ETH_HLEN;
                 if (pullsize > 0) {
                         printk(KERN_DEBUG "isdn_net: Pull junk %d\n", pullsize);
                         skb_pull(skb, pullsize);