[SK_BUFF]: Introduce skb_network_header_len
For the common sequence "skb->h.raw - skb->nh.raw", similar to skb->mac_len,
that is precalculated tho, don't think we need to bloat skb with one more
member, so just use this new helper, reducing the number of non-skbuff.h
references to the layer headers even more.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 07e86eb..4c45bcc 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1168,7 +1168,7 @@
/* compute payload length excluding extension headers */
len = ntohs(ipv6_hdr(skb)->payload_len) + sizeof(struct ipv6hdr);
- len -= skb->h.raw - skb->nh.raw;
+ len -= skb_network_header_len(skb);
/* Drop queries with not link local source */
if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL))