[SK_BUFF]: Introduce skb_reset_mac_header(skb)

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

View file

@ -753,7 +753,7 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev)
/* Set the mac.raw pointer, since this apparently isn't getting
* done before we get the skb. Pull the data pointer past the mac data.
*/
skb->mac.raw = skb->data;
skb_reset_mac_header(skb);
skb_pull(skb, 12);
dma = pci_map_single(mpt_dev->pcidev, skb->data, skb->len,
@ -1549,7 +1549,7 @@ mpt_lan_type_trans(struct sk_buff *skb, struct net_device *dev)
struct mpt_lan_ohdr *fch = (struct mpt_lan_ohdr *)skb->data;
struct fcllc *fcllc;
skb->mac.raw = skb->data;
skb_reset_mac_header(skb);
skb_pull(skb, sizeof(struct mpt_lan_ohdr));
if (fch->dtype == htons(0xffff)) {