[SK_BUFF]: Introduce skb_transport_offset()

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

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

2 files changed, 2 insertions, 2 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index 99f15728d9cb..f7f7e5687e46 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1156,7 +1156,7 @@ EXPORT_SYMBOL(netif_device_attach);
 int skb_checksum_help(struct sk_buff *skb)
 {
         __wsum csum;
-        int ret = 0, offset = skb->h.raw - skb->data;
+        int ret = 0, offset = skb_transport_offset(skb);
 
         if (skb->ip_summed == CHECKSUM_COMPLETE)
                 goto out_set_summed;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 1493c95f633e..b242020c02f7 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1348,7 +1348,7 @@ void skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to)
         long csstart;
 
         if (skb->ip_summed == CHECKSUM_PARTIAL)
-                csstart = skb->h.raw - skb->data;
+                csstart = skb_transport_offset(skb);
         else
                 csstart = skb_headlen(skb);