[SK_BUFF]: Introduce skb_network_header_len

For the common sequence "skb->h.raw - skb->nh.raw", similar to skb->mac_len,
that is precalculated tho, don't think we need to bloat skb with one more
member, so just use this new helper, reducing the number of non-skbuff.h
references to the layer headers even more.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index b9f44602c5e1..b666a0cc0642 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -953,7 +953,7 @@ static inline void gfar_tx_checksum(struct sk_buff *skb, struct txfcb *fcb)
          * l4os is the distance between the start of the
          * l3 hdr and the l4 hdr */
         fcb->l3os = (u16)(skb_network_offset(skb) - GMAC_FCB_LEN);
-        fcb->l4os = (u16)(skb->h.raw - skb->nh.raw);
+        fcb->l4os = skb_network_header_len(skb);
 
         fcb->flags = flags;
 }