[SK_BUFF]: Introduce skb_network_offset()

For the quite common 'skb->nh.raw - skb->data' sequence.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 3 deletions

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 841e3f32cab1..c5653c512b43 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1125,7 +1125,7 @@ int neigh_compat_output(struct sk_buff *skb)
 {
         struct net_device *dev = skb->dev;
 
-        __skb_pull(skb, skb->nh.raw - skb->data);
+        __skb_pull(skb, skb_network_offset(skb));
 
         if (dev->hard_header &&
             dev->hard_header(skb, dev, ntohs(skb->protocol), NULL, NULL,
@@ -1147,7 +1147,7 @@ int neigh_resolve_output(struct sk_buff *skb)
         if (!dst || !(neigh = dst->neighbour))
                 goto discard;
 
-        __skb_pull(skb, skb->nh.raw - skb->data);
+        __skb_pull(skb, skb_network_offset(skb));
 
         if (!neigh_event_send(neigh, skb)) {
                 int err;
@@ -1190,7 +1190,7 @@ int neigh_connected_output(struct sk_buff *skb)
         struct neighbour *neigh = dst->neighbour;
         struct net_device *dev = neigh->dev;
 
-        __skb_pull(skb, skb->nh.raw - skb->data);
+        __skb_pull(skb, skb_network_offset(skb));
 
         read_lock_bh(&neigh->lock);
         err = dev->hard_header(skb, dev, ntohs(skb->protocol),