[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>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index 7c04179c7b13..e04228c7b14f 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -2029,7 +2029,7 @@ again:
         odd_flag = 0;
         flags = (MXGEFW_FLAGS_NO_TSO | MXGEFW_FLAGS_FIRST);
         if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
-                cksum_offset = (skb->h.raw - skb->data);
+                cksum_offset = skb_transport_offset(skb);
                 pseudo_hdr_offset = cksum_offset + skb->csum_offset;
                 /* If the headers are excessively large, then we must
                  * fall back to a software checksum */
@@ -2054,7 +2054,8 @@ again:
                  * send loop that we are still in the
                  * header portion of the TSO packet.
                  * TSO header must be at most 134 bytes long */
-                cum_len = -((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
+                cum_len = -(skb_transport_offset(skb) +
+                            (skb->h.th->doff << 2));
 
                 /* for TSO, pseudo_hdr_offset holds mss.
                  * The firmware figures out where to put