[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>
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index b3a70eb..7694c51 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -768,7 +768,7 @@
struct nf_conntrack_tuple_hash *h;
struct nf_conn *ct;
- if (!nf_ct_get_tuple(skb, (unsigned int)(skb->nh.raw - skb->data),
+ if (!nf_ct_get_tuple(skb, skb_network_offset(skb),
dataoff, l3num, protonum, &tuple, l3proto,
l4proto)) {
DEBUGP("resolve_normal_ct: Can't get tuple\n");
@@ -960,7 +960,7 @@
if (do_acct) {
ct->counters[CTINFO2DIR(ctinfo)].packets++;
ct->counters[CTINFO2DIR(ctinfo)].bytes +=
- skb->len - (unsigned int)(skb->nh.raw - skb->data);
+ skb->len - skb_network_offset(skb);
if ((ct->counters[CTINFO2DIR(ctinfo)].packets & 0x80000000)
|| (ct->counters[CTINFO2DIR(ctinfo)].bytes & 0x80000000))