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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 <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo
2007-03-19 15:30:44 -07:00
committed by David S. Miller
parent 4c13eb6657
commit 459a98ed88
85 changed files with 121 additions and 111 deletions
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2
net/802/fddi.c
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@@ -131,7 +131,7 @@ __be16 fddi_type_trans(struct sk_buff *skb, struct net_device *dev)
*/
skb->dev = dev;
skb->mac.raw = skb->data; /* point to frame control (FC) */
skb_reset_mac_header(skb); /* point to frame control (FC) */
if(fddi->hdr.llc_8022_1.dsap==0xe0)
{

2
net/802/hippi.c
View File

@@ -131,7 +131,7 @@ __be16 hippi_type_trans(struct sk_buff *skb, struct net_device *dev)
* set the raw address here.
*/
skb->dev = dev;
skb->mac.raw = skb->data;
skb_reset_mac_header(skb);
hip = (struct hippi_hdr *)skb->mac.raw;
skb_pull(skb, HIPPI_HLEN);

2
net/802/tr.c
View File

@@ -194,7 +194,7 @@ __be16 tr_type_trans(struct sk_buff *skb, struct net_device *dev)
unsigned riflen=0;
skb->dev = dev;
skb->mac.raw = skb->data;
skb_reset_mac_header(skb);
trh = tr_hdr(skb);
if(trh->saddr[0] & TR_RII)