[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>

2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/appletalk/cops.c b/drivers/net/appletalk/cops.c
index dba5e5165452..28cb79cee910 100644
--- a/drivers/net/appletalk/cops.c
+++ b/drivers/net/appletalk/cops.c
@@ -853,7 +853,7 @@ static void cops_rx(struct net_device *dev)
                 return;
         }
 
-        skb->mac.raw    = skb->data;    /* Point to entire packet. */
+        skb_reset_mac_header(skb);    /* Point to entire packet. */
         skb_pull(skb,3);
         skb->h.raw      = skb->data;    /* Point to data (Skip header). */
 
diff --git a/drivers/net/appletalk/ltpc.c b/drivers/net/appletalk/ltpc.c
index 2ea44ce49810..12682439f8bd 100644
--- a/drivers/net/appletalk/ltpc.c
+++ b/drivers/net/appletalk/ltpc.c
@@ -770,7 +770,7 @@ static int sendup_buffer (struct net_device *dev)
         skb->data[0] = dnode;
         skb->data[1] = snode;
         skb->data[2] = llaptype;
-        skb->mac.raw = skb->data;       /* save pointer to llap header */
+        skb_reset_mac_header(skb);      /* save pointer to llap header */
         skb_pull(skb,3);
 
         /* copy ddp(s,e)hdr + contents */