[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>
diff --git a/net/atm/br2684.c b/net/atm/br2684.c
index c444f5e..900d42c 100644
--- a/net/atm/br2684.c
+++ b/net/atm/br2684.c
@@ -458,7 +458,7 @@
/* 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];
diff --git a/net/atm/clip.c b/net/atm/clip.c
index 8c38258..ccba24f 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -213,7 +213,7 @@
return;
}
ATM_SKB(skb)->vcc = vcc;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
if (!clip_vcc->encap
|| skb->len < RFC1483LLC_LEN
|| memcmp(skb->data, llc_oui, sizeof (llc_oui)))