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authorHerbert Xu <herbert@gondor.apana.org.au>2007-10-10 18:44:06 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-10 19:55:54 -0400
commit7b277b1a5fb147cb828e5d8b9780cee60f31a9bf (patch)
tree21af4818d7ba9d646a281517f476d81d4245cc30 /net/ipv4/ipcomp.c
parentbee0b40c0621396326d1c17b81833f59118a2d80 (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.c1
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) {