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[SK_BUFF]: Introduce skb_network_header()

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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>
This commit is contained in:
Arnaldo Carvalho de Melo
2007-04-10 20:50:43 -07:00
committed by David S. Miller
parent bbe735e424
commit d56f90a7c9
59 changed files with 258 additions and 185 deletions
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6
drivers/net/pasemi_mac.c
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@ -729,16 +729,18 @@ static int pasemi_mac_start_tx(struct sk_buff *skb, struct net_device *dev)
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;
}
}