[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, 2 insertions, 2 deletions

diff --git a/drivers/net/irda/mcs7780.c b/drivers/net/irda/mcs7780.c
index f0c61f3b2a82..3ff1f4b33c06 100644
--- a/drivers/net/irda/mcs7780.c
+++ b/drivers/net/irda/mcs7780.c
@@ -428,7 +428,7 @@ static void mcs_unwrap_mir(struct mcs_cb *mcs, __u8 *buf, int len)
         skb_reserve(skb, 1);
         memcpy(skb->data, buf, new_len);
         skb_put(skb, new_len);
-        skb->mac.raw = skb->data;
+        skb_reset_mac_header(skb);
         skb->protocol = htons(ETH_P_IRDA);
         skb->dev = mcs->netdev;
 
@@ -481,7 +481,7 @@ static void mcs_unwrap_fir(struct mcs_cb *mcs, __u8 *buf, int len)
         skb_reserve(skb, 1);
         memcpy(skb->data, buf, new_len);
         skb_put(skb, new_len);
-        skb->mac.raw = skb->data;
+        skb_reset_mac_header(skb);
         skb->protocol = htons(ETH_P_IRDA);
         skb->dev = mcs->netdev;