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[SK_BUFF]: Introduce skb_transport_header(skb)

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For the places where we need a pointer to the transport header, it is
still legal to touch skb->h.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
2007-04-25 18:04:18 -07:00
committed by David S. Miller
parent a27ef749e7
commit 9c70220b73
42 changed files with 129 additions and 102 deletions
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6
net/core/dev.c
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@@ -1175,12 +1175,12 @@ int skb_checksum_help(struct sk_buff *skb)
BUG_ON(offset > (int)skb->len);
csum = skb_checksum(skb, offset, skb->len-offset, 0);
offset = skb->tail - skb->h.raw;
offset = skb->tail - skb_transport_header(skb);
BUG_ON(offset <= 0);
BUG_ON(skb->csum_offset + 2 > offset);
*(__sum16*)(skb->h.raw + skb->csum_offset) = csum_fold(csum);
*(__sum16 *)(skb_transport_header(skb) +
skb->csum_offset) = csum_fold(csum);
out_set_summed:
skb->ip_summed = CHECKSUM_NONE;
out: