1 files changed, 10 insertions, 35 deletions

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 48597538db3f..ff9040c92556 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -44,7 +44,6 @@
 
 #include <net/ip.h>
 #include <net/ipv6.h>
-#include <net/protocol.h>
 #include <net/ip6_route.h>
 #include <net/addrconf.h>
 #include <net/ip6_tunnel.h>
@@ -391,7 +390,7 @@ parse_tlv_tnl_enc_lim(struct sk_buff *skb, __u8 * raw)
  *   to the specifications in RFC 2473.
  **/
 
-static void 
+static int
 ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
            int type, int code, int offset, __u32 info)
 {
@@ -402,6 +401,7 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
         int rel_code = ICMPV6_ADDR_UNREACH;
         __u32 rel_info = 0;
         __u16 len;
+        int err = -ENOENT;
 
         /* If the packet doesn't contain the original IPv6 header we are 
            in trouble since we might need the source address for further 
@@ -411,6 +411,8 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
         if ((t = ip6ip6_tnl_lookup(&ipv6h->daddr, &ipv6h->saddr)) == NULL)
                 goto out;
 
+        err = 0;
+
         switch (type) {
                 __u32 teli;
                 struct ipv6_tlv_tnl_enc_lim *tel;
@@ -492,6 +494,7 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
         }
 out:
         read_unlock(&ip6ip6_lock);
+        return err;
 }
 
 static inline void ip6ip6_ecn_decapsulate(struct ipv6hdr *outer_iph,
@@ -511,9 +514,8 @@ static inline void ip6ip6_ecn_decapsulate(struct ipv6hdr *outer_iph,
  **/
 
 static int 
-ip6ip6_rcv(struct sk_buff **pskb)
+ip6ip6_rcv(struct sk_buff *skb)
 {
-        struct sk_buff *skb = *pskb;
         struct ipv6hdr *ipv6h;
         struct ip6_tnl *t;
 
@@ -1112,39 +1114,12 @@ ip6ip6_fb_tnl_dev_init(struct net_device *dev)
         return 0;
 }
 
-#ifdef CONFIG_INET6_TUNNEL
 static struct xfrm6_tunnel ip6ip6_handler = {
         .handler        = ip6ip6_rcv,
         .err_handler    = ip6ip6_err,
+        .priority       =       1,
 };
 
-static inline int ip6ip6_register(void)
-{
-        return xfrm6_tunnel_register(&ip6ip6_handler);
-}
-
-static inline int ip6ip6_unregister(void)
-{
-        return xfrm6_tunnel_deregister(&ip6ip6_handler);
-}
-#else
-static struct inet6_protocol xfrm6_tunnel_protocol = {
-        .handler        = ip6ip6_rcv,
-        .err_handler    = ip6ip6_err,
-        .flags          = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
-};
-
-static inline int ip6ip6_register(void)
-{
-        return inet6_add_protocol(&xfrm6_tunnel_protocol, IPPROTO_IPV6);
-}
-
-static inline int ip6ip6_unregister(void)
-{
-        return inet6_del_protocol(&xfrm6_tunnel_protocol, IPPROTO_IPV6);
-}
-#endif
-
 /**
  * ip6_tunnel_init - register protocol and reserve needed resources
  *
@@ -1155,7 +1130,7 @@ static int __init ip6_tunnel_init(void)
 {
         int  err;
 
-        if (ip6ip6_register() < 0) {
+        if (xfrm6_tunnel_register(&ip6ip6_handler)) {
                 printk(KERN_ERR "ip6ip6 init: can't register tunnel\n");
                 return -EAGAIN;
         }
@@ -1174,7 +1149,7 @@ static int __init ip6_tunnel_init(void)
         }
         return 0;
 fail:
-        ip6ip6_unregister();
+        xfrm6_tunnel_deregister(&ip6ip6_handler);
         return err;
 }
 
@@ -1184,7 +1159,7 @@ fail:
 
 static void __exit ip6_tunnel_cleanup(void)
 {
-        if (ip6ip6_unregister() < 0)
+        if (xfrm6_tunnel_deregister(&ip6ip6_handler))
                 printk(KERN_INFO "ip6ip6 close: can't deregister tunnel\n");
 
         unregister_netdev(ip6ip6_fb_tnl_dev);