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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/decnet/dn_route.c
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@ -1537,7 +1537,7 @@ int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void *arg)
skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
if (skb == NULL)
return -ENOBUFS;
skb->mac.raw = skb->data;
skb_reset_mac_header(skb);
cb = DN_SKB_CB(skb);
if (rta[RTA_SRC-1])