From 7b277b1a5fb147cb828e5d8b9780cee60f31a9bf Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 10 Oct 2007 15:44:06 -0700 Subject: [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 Signed-off-by: David S. Miller --- net/ipv4/xfrm4_mode_beet.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'net/ipv4/xfrm4_mode_beet.c') diff --git a/net/ipv4/xfrm4_mode_beet.c b/net/ipv4/xfrm4_mode_beet.c index a73e710740c..77888f59673 100644 --- a/net/ipv4/xfrm4_mode_beet.c +++ b/net/ipv4/xfrm4_mode_beet.c @@ -40,10 +40,11 @@ static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb) if (unlikely(optlen)) hdrlen += IPV4_BEET_PHMAXLEN - (optlen & 4); - skb_push(skb, x->props.header_len - IPV4_BEET_PHMAXLEN + hdrlen); - skb_reset_network_header(skb); + skb_set_network_header(skb, IPV4_BEET_PHMAXLEN - x->props.header_len - + hdrlen); top_iph = ip_hdr(skb); skb->transport_header += sizeof(*iph) - hdrlen; + __skb_pull(skb, sizeof(*iph) - hdrlen); memmove(top_iph, iph, sizeof(*iph)); if (unlikely(optlen)) { -- cgit v1.2.3