[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>
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index a891f6f..d38b1bc 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -1319,9 +1319,10 @@
/* Only TX_DATA builds SGLs */
from = (struct work_request_hdr *)skb->data;
- memcpy(&d->flit[1], &from[1], skb->h.raw - skb->data - sizeof(*from));
+ memcpy(&d->flit[1], &from[1],
+ skb_transport_offset(skb) - sizeof(*from));
- flits = (skb->h.raw - skb->data) / 8;
+ flits = skb_transport_offset(skb) / 8;
sgp = ndesc == 1 ? (struct sg_ent *)&d->flit[flits] : sgl;
sgl_flits = make_sgl(skb, sgp, skb->h.raw, skb->tail - skb->h.raw,
adap->pdev);
@@ -1349,7 +1350,7 @@
if (skb->len <= WR_LEN && cnt == 0)
return 1; /* packet fits as immediate data */
- flits = (skb->h.raw - skb->data) / 8; /* headers */
+ flits = skb_transport_offset(skb) / 8; /* headers */
if (skb->tail != skb->h.raw)
cnt++;
return flits_to_desc(flits + sgl_len(cnt));