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[SK_BUFF]: Introduce skb_network_header_len

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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>
This commit is contained in:
Arnaldo Carvalho de Melo
2007-03-16 17:26:39 -03:00
committed by David S. Miller
parent bff9b61ce3
commit cfe1fc7759
14 changed files with 27 additions and 21 deletions
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net/ipv6/mcast.c
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@@ -1168,7 +1168,7 @@ int igmp6_event_query(struct sk_buff *skb)
/* 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))