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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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8
net/ipv6/reassembly.c
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@@ -679,7 +679,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
/* Yes, and fold redundant checksum back. 8) */
if (head->ip_summed == CHECKSUM_COMPLETE)
head->csum = csum_partial(skb_network_header(head),
head->h.raw - head->nh.raw,
skb_network_header_len(head),
head->csum);
rcu_read_lock();
@@ -715,13 +715,15 @@ static int ipv6_frag_rcv(struct sk_buff **skbp)
/* Jumbo payload inhibits frag. header */
if (hdr->payload_len==0) {
IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, skb->h.raw-skb->nh.raw);
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
skb_network_header_len(skb));
return -1;
}
if (!pskb_may_pull(skb, (skb_transport_offset(skb) +
sizeof(struct frag_hdr)))) {
IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, skb->h.raw-skb->nh.raw);
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
skb_network_header_len(skb));
return -1;
}