[SK_BUFF]: Introduce skb_network_header()
For the places where we need a pointer to the network header, it is still legal
to touch skb->nh.raw directly if just adding to, subtracting from or setting it
to another layer header.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c
index 3f4213f..8221872 100644
--- a/drivers/net/pasemi_mac.c
+++ b/drivers/net/pasemi_mac.c
@@ -729,16 +729,18 @@
dflags = XCT_MACTX_O | XCT_MACTX_ST | XCT_MACTX_SS | XCT_MACTX_CRC_PAD;
if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ const unsigned char *nh = skb_network_header(skb);
+
switch (skb->nh.iph->protocol) {
case IPPROTO_TCP:
dflags |= XCT_MACTX_CSUM_TCP;
dflags |= XCT_MACTX_IPH((skb->h.raw - skb->nh.raw) >> 2);
- dflags |= XCT_MACTX_IPO(skb->nh.raw - skb->data);
+ dflags |= XCT_MACTX_IPO(nh - skb->data);
break;
case IPPROTO_UDP:
dflags |= XCT_MACTX_CSUM_UDP;
dflags |= XCT_MACTX_IPH((skb->h.raw - skb->nh.raw) >> 2);
- dflags |= XCT_MACTX_IPO(skb->nh.raw - skb->data);
+ dflags |= XCT_MACTX_IPO(nh - skb->data);
break;
}
}