[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, 1 deletions

diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c
index efb8cf3bd8ad..cc18f9686d27 100644
--- a/drivers/net/wireless/hostap/hostap_ap.c
+++ b/drivers/net/wireless/hostap/hostap_ap.c
@@ -982,7 +982,8 @@ static void prism2_send_mgmt(struct net_device *dev,
         meta->tx_cb_idx = tx_cb_idx;
 
         skb->dev = dev;
-        skb->mac.raw = skb->nh.raw = skb->data;
+        skb_reset_mac_header(skb);
+        skb->nh.raw = skb->data;
         dev_queue_xmit(skb);
 }
 #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */