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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-10-10 15:44:06 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:55:54 -0700 |
| commit | 7b277b1a5fb147cb828e5d8b9780cee60f31a9bf (patch) | |
| tree | 21af4818d7ba9d646a281517f476d81d4245cc30 /net/ipv6/xfrm6_tunnel.c | |
| parent | bee0b40c0621396326d1c17b81833f59118a2d80 (diff) | |
| download | lwn-7b277b1a5fb147cb828e5d8b9780cee60f31a9bf.tar.gz lwn-7b277b1a5fb147cb828e5d8b9780cee60f31a9bf.zip | |
[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/ipv6/xfrm6_tunnel.c')
| -rw-r--r-- | net/ipv6/xfrm6_tunnel.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c index aeb06076fdd0..00a1a3e5237c 100644 --- a/net/ipv6/xfrm6_tunnel.c +++ b/net/ipv6/xfrm6_tunnel.c @@ -244,6 +244,7 @@ static int xfrm6_tunnel_output(struct xfrm_state *x, struct sk_buff *skb) { struct ipv6hdr *top_iph; + skb_push(skb, -skb_network_offset(skb)); top_iph = ipv6_hdr(skb); top_iph->payload_len = htons(skb->len - sizeof(struct ipv6hdr)); |