diff options
author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-10-10 18:44:06 -0400 |
---|---|---|
committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 19:55:54 -0400 |
commit | 7b277b1a5fb147cb828e5d8b9780cee60f31a9bf (patch) | |
tree | 21af4818d7ba9d646a281517f476d81d4245cc30 /net/ipv4/ipcomp.c | |
parent | bee0b40c0621396326d1c17b81833f59118a2d80 (diff) |
[IPSEC]: Set skb->data to payload in x->mode->output
This patch changes the calling convention so that on entry from
x->mode->output and before entry into x->type->output skb->data
will point to the payload instead of the IP header.
This is essentially a redistribution of skb_push/skb_pull calls
with the aim of minimising them on the common path of tunnel +
ESP.
It'll also let us use the same calling convention between IPv4
and IPv6 with the next patch.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ipcomp.c')
-rw-r--r-- | net/ipv4/ipcomp.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c index e787044a851..1929d451dab 100644 --- a/net/ipv4/ipcomp.c +++ b/net/ipv4/ipcomp.c | |||
@@ -134,6 +134,7 @@ static int ipcomp_output(struct xfrm_state *x, struct sk_buff *skb) | |||
134 | int hdr_len = 0; | 134 | int hdr_len = 0; |
135 | struct iphdr *iph = ip_hdr(skb); | 135 | struct iphdr *iph = ip_hdr(skb); |
136 | 136 | ||
137 | skb_push(skb, -skb_network_offset(skb)); | ||
137 | iph->tot_len = htons(skb->len); | 138 | iph->tot_len = htons(skb->len); |
138 | hdr_len = iph->ihl * 4; | 139 | hdr_len = iph->ihl * 4; |
139 | if ((skb->len - hdr_len) < ipcd->threshold) { | 140 | if ((skb->len - hdr_len) < ipcd->threshold) { |