[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 <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/atm/br2684.c b/net/atm/br2684.c
index c444f5eda22d..900d42ca8a50 100644
--- a/net/atm/br2684.c
+++ b/net/atm/br2684.c
@@ -458,7 +458,7 @@ static void br2684_push(struct atm_vcc *atmvcc, struct sk_buff *skb)
         /* FIXME: tcpdump shows that pointer to mac header is 2 bytes earlier,
            than should be. What else should I set? */
         skb_pull(skb, plen);
-        skb->mac.raw = ((char *) (skb->data)) - ETH_HLEN;
+        skb->mac.raw = skb->data - ETH_HLEN;
         skb->pkt_type = PACKET_HOST;
 #ifdef CONFIG_BR2684_FAST_TRANS
         skb->protocol = ((u16 *) skb->data)[-1];