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[SK_BUFF]: Introduce skb_reset_mac_header(skb)

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For the common, open coded 'skb->mac.raw = skb->data' operation, so that we can
later turn skb->mac.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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Arnaldo Carvalho de Melo 2007-03-19 15:30:44 -07:00 • committed by David S. Miller
commit 459a98ed88
85 changed files with 119 additions and 109 deletions
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2
net/ethernet/eth.c
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@ -157,7 +157,7 @@ __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev)
unsigned char *rawp;
skb->dev = dev;
skb->mac.raw = skb->data;
skb_reset_mac_header(skb);
skb_pull(skb, ETH_HLEN);
eth = eth_hdr(skb);