[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, 1 insertions, 1 deletions

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 336958fbbcb2..8f6ebd0d3693 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1928,7 +1928,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
                 nskb->mac_len = skb->mac_len;
 
                 skb_reserve(nskb, headroom);
-                nskb->mac.raw = nskb->data;
+                skb_reset_mac_header(nskb);
                 nskb->nh.raw = nskb->data + skb->mac_len;
                 nskb->h.raw = nskb->nh.raw + (skb->h.raw - skb->nh.raw);
                 memcpy(skb_put(nskb, doffset), skb->data, doffset);