commit ea2ae17d6443abddc79480dc9f7af8feacabddc4
author Arnaldo Carvalho de Melo <acme@redhat.com> Wed Apr 25 17:55:53 2007 -0700
committer David S. Miller <davem@sunset.davemloft.net> Wed Apr 25 22:25:16 2007 -0700
tree 2d6f48a5e4a40f761b5b510af9aac1fca55004cb
parent badff6d01a8589a1c828b0bf118903ca38627f4e

[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>

drivers/net/sunhme.c

diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c
index aca592b..4b69c1d 100644
--- a/drivers/net/sunhme.c
+++ b/drivers/net/sunhme.c
@@ -2269,10 +2269,8 @@
 
 	tx_flags = TXFLAG_OWN;
 	if (skb->ip_summed == CHECKSUM_PARTIAL) {
-		u32 csum_start_off, csum_stuff_off;
-
-		csum_start_off = (u32) (skb->h.raw - skb->data);
-		csum_stuff_off = csum_start_off + skb->csum_offset;
+		const u32 csum_start_off = skb_transport_offset(skb);
+		const u32 csum_stuff_off = csum_start_off + skb->csum_offset;
 
 		tx_flags = (TXFLAG_OWN | TXFLAG_CSENABLE |
 			    ((csum_start_off << 14) & TXFLAG_CSBUFBEGIN) |