[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/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index 04e31f8..8593037 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -55,7 +55,7 @@
skb->dev = dev;
skb_put(skb, dev->mtu);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
pkt_len = (*lp->read)(lp->fd, &skb, lp);
if (pkt_len > 0) {