[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, 3 insertions, 3 deletions

diff --git a/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c
index 838b3734e2b6..fadb9291bc1b 100644
--- a/drivers/isdn/i4l/isdn_net.c
+++ b/drivers/isdn/i4l/isdn_net.c
@@ -1366,7 +1366,7 @@ isdn_net_type_trans(struct sk_buff *skb, struct net_device *dev)
         struct ethhdr *eth;
         unsigned char *rawp;
 
-        skb->mac.raw = skb->data;
+        skb_reset_mac_header(skb);
         skb_pull(skb, ETH_HLEN);
         eth = eth_hdr(skb);
 
@@ -1786,7 +1786,7 @@ isdn_net_receive(struct net_device *ndev, struct sk_buff *skb)
         }
         skb->dev = ndev;
         skb->pkt_type = PACKET_HOST;
-        skb->mac.raw = skb->data;
+        skb_reset_mac_header(skb);
 #ifdef ISDN_DEBUG_NET_DUMP
         isdn_dumppkt("R:", skb->data, skb->len, 40);
 #endif
diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
index 1b2df80c3bce..be915051cb2e 100644
--- a/drivers/isdn/i4l/isdn_ppp.c
+++ b/drivers/isdn/i4l/isdn_ppp.c
@@ -1167,7 +1167,7 @@ isdn_ppp_push_higher(isdn_net_dev * net_dev, isdn_net_local * lp, struct sk_buff
                 mlp->huptimer = 0;
 #endif /* CONFIG_IPPP_FILTER */
         skb->dev = dev;
-        skb->mac.raw = skb->data;
+        skb_reset_mac_header(skb);
         netif_rx(skb);
         /* net_dev->local->stats.rx_packets++; done in isdn_net.c */
         return;