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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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4
net/ipv4/ip_output.c
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@@ -593,7 +593,7 @@ slow_path:
ip_copy_metadata(skb2, skb);
skb_reserve(skb2, ll_rs);
skb_put(skb2, len + hlen);
skb2->nh.raw = skb2->data;
skb_reset_network_header(skb2);
skb2->h.raw = skb2->data + hlen;
/*
@@ -722,7 +722,7 @@ static inline int ip_ufo_append_data(struct sock *sk,
skb_put(skb,fragheaderlen + transhdrlen);
/* initialize network header pointer */
skb->nh.raw = skb->data;
skb_reset_network_header(skb);
/* initialize protocol header pointer */
skb->h.raw = skb->data + fragheaderlen;