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[SK_BUFF]: Introduce skb_reset_network_header(skb)

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For the common, open coded 'skb->nh.raw = skb->data' operation, so that we can
later turn skb->nh.raw into a offset, reducing the size of struct sk_buff in
64bit land while possibly keeping it as a pointer on 32bit.

This one touches just the most simple case, next will handle the slightly more
"complex" cases.

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
2007-04-10 20:45:18 -07:00
committed by David S. Miller
parent 57effc70a5
commit c1d2bbe1cd
47 changed files with 78 additions and 68 deletions
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6
net/ipv6/ip6_tunnel.c
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@@ -525,7 +525,7 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
dst_release(skb2->dst);
skb2->dst = NULL;
skb_pull(skb2, offset);
skb2->nh.raw = skb2->data;
skb_reset_network_header(skb2);
eiph = skb2->nh.iph;
/* Try to guess incoming interface */
@@ -599,7 +599,7 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
dst_release(skb2->dst);
skb2->dst = NULL;
skb_pull(skb2, offset);
skb2->nh.raw = skb2->data;
skb_reset_network_header(skb2);
/* Try to guess incoming interface */
rt = rt6_lookup(&skb2->nh.ipv6h->saddr, NULL, 0, 0);
@@ -704,7 +704,7 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,
}
secpath_reset(skb);
skb->mac.raw = skb->nh.raw;
skb->nh.raw = skb->data;
skb_reset_network_header(skb);
skb->protocol = htons(protocol);
skb->pkt_type = PACKET_HOST;
memset(skb->cb, 0, sizeof(struct inet6_skb_parm));