[SK_BUFF] ipv6: Use skb_network_offset in some more places
So that we reduce the number of direct accesses to skb->data.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index caf9e37..b97aedc 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -1448,7 +1448,7 @@
int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
int target, unsigned short *fragoff)
{
- unsigned int start = (u8 *)(ipv6_hdr(skb) + 1) - skb->data;
+ unsigned int start = skb_network_offset(skb) + sizeof(struct ipv6hdr);
u8 nexthdr = ipv6_hdr(skb)->nexthdr;
unsigned int len = skb->len - start;