X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=net%2Fipv6%2Fxfrm6_mode_ro.c;h=63d5d493098afd6b250e77b3ef15a880bd7232c7;hb=b318e0e4ef4e85812c25afa19f75addccc834cd4;hp=25758048af541f86e1520dd04ec3285fbc951be4;hpb=007f0211a8872f32381f5d44becf8eb2f27f3c30;p=linux-2.6-omap-h63xx.git

diff --git a/net/ipv6/xfrm6_mode_ro.c b/net/ipv6/xfrm6_mode_ro.c
index 25758048af5..63d5d493098 100644
--- a/net/ipv6/xfrm6_mode_ro.c
+++ b/net/ipv6/xfrm6_mode_ro.c
@@ -28,6 +28,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/skbuff.h>
+#include <linux/spinlock.h>
 #include <linux/stringify.h>
 #include <linux/time.h>
 #include <net/ipv6.h>
@@ -37,13 +38,6 @@
  *
  * The IP header and mutable extension headers will be moved forward to make
  * space for the route optimization header.
- *
- * On exit, skb->h will be set to the start of the encapsulation header to be
- * filled in by x->type->output and the mac header will be set to the
- * nextheader field of the extension header directly preceding the
- * encapsulation header, or in its absence, that of the top IP header.
- * The value of skb->data and the network header will always point to the
- * top IP header.
  */
 static int xfrm6_ro_output(struct xfrm_state *x, struct sk_buff *skb)
 {
@@ -51,30 +45,21 @@ static int xfrm6_ro_output(struct xfrm_state *x, struct sk_buff *skb)
 	u8 *prevhdr;
 	int hdr_len;
 
-	skb_push(skb, x->props.header_len);
 	iph = ipv6_hdr(skb);
 
 	hdr_len = x->type->hdr_offset(x, skb, &prevhdr);
 	skb_set_mac_header(skb, (prevhdr - x->props.header_len) - skb->data);
-	skb_reset_network_header(skb);
-	skb_set_transport_header(skb, hdr_len);
-	memmove(skb->data, iph, hdr_len);
+	skb_set_network_header(skb, -x->props.header_len);
+	skb->transport_header = skb->network_header + hdr_len;
+	__skb_pull(skb, hdr_len);
+	memmove(ipv6_hdr(skb), iph, hdr_len);
 
 	x->lastused = get_seconds();
 
 	return 0;
 }
 
-/*
- * Do nothing about routing optimization header unlike IPsec.
- */
-static int xfrm6_ro_input(struct xfrm_state *x, struct sk_buff *skb)
-{
-	return 0;
-}
-
 static struct xfrm_mode xfrm6_ro_mode = {
-	.input = xfrm6_ro_input,
 	.output = xfrm6_ro_output,
 	.owner = THIS_MODULE,
 	.encap = XFRM_MODE_ROUTEOPTIMIZATION,