[IPV6] IP6TUNNEL: Rename functions ip6ip6_* to ip6_tnl_*. (3144581c) · Commits · e / devices / android_kernel_teracube_2e

net/ipv6/ip6_tunnel.c

+96 −96

Original line number	Diff line number	Diff line
		@@ -74,12 +74,12 @@ MODULE_LICENSE("GPL");
		(addr)->s6_addr32[2] ^ (addr)->s6_addr32[3]) & \
		(HASH_SIZE - 1))

		static int ip6ip6_fb_tnl_dev_init(struct net_device *dev);
		static int ip6ip6_tnl_dev_init(struct net_device *dev);
		static void ip6ip6_tnl_dev_setup(struct net_device *dev);
		static int ip6_fb_tnl_dev_init(struct net_device *dev);
		static int ip6_tnl_dev_init(struct net_device *dev);
		static void ip6_tnl_dev_setup(struct net_device *dev);

		/* the IPv6 tunnel fallback device */
		static struct net_device *ip6ip6_fb_tnl_dev;
		static struct net_device *ip6_fb_tnl_dev;


		/* lists for storing tunnels in use */
		@@ -88,7 +88,7 @@ static struct ip6_tnl *tnls_wc[1];
		static struct ip6_tnl **tnls[2] = { tnls_wc, tnls_r_l };

		/* lock for the tunnel lists */
		static DEFINE_RWLOCK(ip6ip6_lock);
		static DEFINE_RWLOCK(ip6_tnl_lock);

		static inline struct dst_entry ip6_tnl_dst_check(struct ip6_tnl t)
		{
		@@ -119,7 +119,7 @@ static inline void ip6_tnl_dst_store(struct ip6_tnl t, struct dst_entry dst)
		}

		/**
		* ip6ip6_tnl_lookup - fetch tunnel matching the end-point addresses
		* ip6_tnl_lookup - fetch tunnel matching the end-point addresses
		* @remote: the address of the tunnel exit-point
		* @local: the address of the tunnel entry-point
		*
		@@ -130,7 +130,7 @@ static inline void ip6_tnl_dst_store(struct ip6_tnl t, struct dst_entry dst)
		**/

		static struct ip6_tnl *
		ip6ip6_tnl_lookup(struct in6_addr remote, struct in6_addr local)
		ip6_tnl_lookup(struct in6_addr remote, struct in6_addr local)
		{
		unsigned h0 = HASH(remote);
		unsigned h1 = HASH(local);
		@@ -149,18 +149,18 @@ ip6ip6_tnl_lookup(struct in6_addr remote, struct in6_addr local)
		}

		/**
		* ip6ip6_bucket - get head of list matching given tunnel parameters
		* ip6_tnl_bucket - get head of list matching given tunnel parameters
		* @p: parameters containing tunnel end-points
		*
		* Description:
		* ip6ip6_bucket() returns the head of the list matching the
		* ip6_tnl_bucket() returns the head of the list matching the
		* &struct in6_addr entries laddr and raddr in @p.
		*
		* Return: head of IPv6 tunnel list
		**/

		static struct ip6_tnl **
		ip6ip6_bucket(struct ip6_tnl_parm *p)
		ip6_tnl_bucket(struct ip6_tnl_parm *p)
		{
		struct in6_addr *remote = &p->raddr;
		struct in6_addr *local = &p->laddr;
		@@ -175,36 +175,36 @@ ip6ip6_bucket(struct ip6_tnl_parm *p)
		}

		/**
		* ip6ip6_tnl_link - add tunnel to hash table
		* ip6_tnl_link - add tunnel to hash table
		* @t: tunnel to be added
		**/

		static void
		ip6ip6_tnl_link(struct ip6_tnl *t)
		ip6_tnl_link(struct ip6_tnl *t)
		{
		struct ip6_tnl **tp = ip6ip6_bucket(&t->parms);
		struct ip6_tnl **tp = ip6_tnl_bucket(&t->parms);

		t->next = *tp;
		write_lock_bh(&ip6ip6_lock);
		write_lock_bh(&ip6_tnl_lock);
		*tp = t;
		write_unlock_bh(&ip6ip6_lock);
		write_unlock_bh(&ip6_tnl_lock);
		}

		/**
		* ip6ip6_tnl_unlink - remove tunnel from hash table
		* ip6_tnl_unlink - remove tunnel from hash table
		* @t: tunnel to be removed
		**/

		static void
		ip6ip6_tnl_unlink(struct ip6_tnl *t)
		ip6_tnl_unlink(struct ip6_tnl *t)
		{
		struct ip6_tnl **tp;

		for (tp = ip6ip6_bucket(&t->parms); tp; tp = &(tp)->next) {
		for (tp = ip6_tnl_bucket(&t->parms); tp; tp = &(tp)->next) {
		if (t == *tp) {
		write_lock_bh(&ip6ip6_lock);
		write_lock_bh(&ip6_tnl_lock);
		*tp = t->next;
		write_unlock_bh(&ip6ip6_lock);
		write_unlock_bh(&ip6_tnl_lock);
		break;
		}
		}
		@@ -241,12 +241,12 @@ static struct ip6_tnl ip6_tnl_create(struct ip6_tnl_parm p)
		if (i == IP6_TNL_MAX)
		goto failed;
		}
		dev = alloc_netdev(sizeof (*t), name, ip6ip6_tnl_dev_setup);
		dev = alloc_netdev(sizeof (*t), name, ip6_tnl_dev_setup);
		if (dev == NULL)
		goto failed;

		t = netdev_priv(dev);
		dev->init = ip6ip6_tnl_dev_init;
		dev->init = ip6_tnl_dev_init;
		t->parms = *p;

		if ((err = register_netdevice(dev)) < 0) {
		@@ -254,19 +254,19 @@ static struct ip6_tnl ip6_tnl_create(struct ip6_tnl_parm p)
		goto failed;
		}
		dev_hold(dev);
		ip6ip6_tnl_link(t);
		ip6_tnl_link(t);
		return t;
		failed:
		return NULL;
		}

		/**
		* ip6ip6_tnl_locate - find or create tunnel matching given parameters
		* ip6_tnl_locate - find or create tunnel matching given parameters
		* @p: tunnel parameters
		* @create: != 0 if allowed to create new tunnel if no match found
		*
		* Description:
		* ip6ip6_tnl_locate() first tries to locate an existing tunnel
		* ip6_tnl_locate() first tries to locate an existing tunnel
		* based on @parms. If this is unsuccessful, but @create is set a new
		* tunnel device is created and registered for use.
		*
		@@ -274,13 +274,13 @@ static struct ip6_tnl ip6_tnl_create(struct ip6_tnl_parm p)
		* matching tunnel or NULL
		**/

		static struct ip6_tnl ip6ip6_tnl_locate(struct ip6_tnl_parm p, int create)
		static struct ip6_tnl ip6_tnl_locate(struct ip6_tnl_parm p, int create)
		{
		struct in6_addr *remote = &p->raddr;
		struct in6_addr *local = &p->laddr;
		struct ip6_tnl *t;

		for (t = *ip6ip6_bucket(p); t; t = t->next) {
		for (t = *ip6_tnl_bucket(p); t; t = t->next) {
		if (ipv6_addr_equal(local, &t->parms.laddr) &&
		ipv6_addr_equal(remote, &t->parms.raddr))
		return t;
		@@ -291,24 +291,24 @@ static struct ip6_tnl ip6ip6_tnl_locate(struct ip6_tnl_parm p, int create)
		}

		/**
		* ip6ip6_tnl_dev_uninit - tunnel device uninitializer
		* ip6_tnl_dev_uninit - tunnel device uninitializer
		* @dev: the device to be destroyed
		*
		* Description:
		* ip6ip6_tnl_dev_uninit() removes tunnel from its list
		* ip6_tnl_dev_uninit() removes tunnel from its list
		**/

		static void
		ip6ip6_tnl_dev_uninit(struct net_device *dev)
		ip6_tnl_dev_uninit(struct net_device *dev)
		{
		struct ip6_tnl *t = netdev_priv(dev);

		if (dev == ip6ip6_fb_tnl_dev) {
		write_lock_bh(&ip6ip6_lock);
		if (dev == ip6_fb_tnl_dev) {
		write_lock_bh(&ip6_tnl_lock);
		tnls_wc[0] = NULL;
		write_unlock_bh(&ip6ip6_lock);
		write_unlock_bh(&ip6_tnl_lock);
		} else {
		ip6ip6_tnl_unlink(t);
		ip6_tnl_unlink(t);
		}
		ip6_tnl_dst_reset(t);
		dev_put(dev);
		@@ -400,8 +400,8 @@ ip6_tnl_err(struct sk_buff skb, struct inet6_skb_parm opt,
		in trouble since we might need the source address for further
		processing of the error. */

		read_lock(&ip6ip6_lock);
		if ((t = ip6ip6_tnl_lookup(&ipv6h->daddr, &ipv6h->saddr)) == NULL)
		read_lock(&ip6_tnl_lock);
		if ((t = ip6_tnl_lookup(&ipv6h->daddr, &ipv6h->saddr)) == NULL)
		goto out;

		err = 0;
		@@ -469,7 +469,7 @@ ip6_tnl_err(struct sk_buff skb, struct inet6_skb_parm opt,
		*msg = rel_msg;

		out:
		read_unlock(&ip6ip6_lock);
		read_unlock(&ip6_tnl_lock);
		return err;
		}

		@@ -662,7 +662,7 @@ static inline int ip6_tnl_rcv_ctl(struct ip6_tnl *t)
		}

		/**
		* ip6ip6_rcv - decapsulate IPv6 packet and retransmit it locally
		* ip6_tnl_rcv - decapsulate IPv6 packet and retransmit it locally
		* @skb: received socket buffer
		* @protocol: ethernet protocol ID
		* @dscp_ecn_decapsulate: the function to decapsulate DSCP code and ECN
		@@ -680,17 +680,17 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,

		ipv6h = skb->nh.ipv6h;

		read_lock(&ip6ip6_lock);
		read_lock(&ip6_tnl_lock);

		if ((t = ip6ip6_tnl_lookup(&ipv6h->saddr, &ipv6h->daddr)) != NULL) {
		if ((t = ip6_tnl_lookup(&ipv6h->saddr, &ipv6h->daddr)) != NULL) {
		if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {
		read_unlock(&ip6ip6_lock);
		read_unlock(&ip6_tnl_lock);
		goto discard;
		}

		if (!ip6_tnl_rcv_ctl(t)) {
		t->stat.rx_dropped++;
		read_unlock(&ip6ip6_lock);
		read_unlock(&ip6_tnl_lock);
		goto discard;
		}
		secpath_reset(skb);
		@@ -709,10 +709,10 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,
		t->stat.rx_packets++;
		t->stat.rx_bytes += skb->len;
		netif_rx(skb);
		read_unlock(&ip6ip6_lock);
		read_unlock(&ip6_tnl_lock);
		return 0;
		}
		read_unlock(&ip6ip6_lock);
		read_unlock(&ip6_tnl_lock);
		return 1;

		discard:
		@@ -750,7 +750,7 @@ static void init_tel_txopt(struct ipv6_tel_txoption *opt, __u8 encap_limit)
		}

		/**
		* ip6ip6_tnl_addr_conflict - compare packet addresses to tunnel's own
		* ip6_tnl_addr_conflict - compare packet addresses to tunnel's own
		* @t: the outgoing tunnel device
		* @hdr: IPv6 header from the incoming packet
		*
		@@ -764,7 +764,7 @@ static void init_tel_txopt(struct ipv6_tel_txoption *opt, __u8 encap_limit)
		**/

		static inline int
		ip6ip6_tnl_addr_conflict(struct ip6_tnl t, struct ipv6hdr hdr)
		ip6_tnl_addr_conflict(struct ip6_tnl t, struct ipv6hdr hdr)
		{
		return ipv6_addr_equal(&t->parms.raddr, &hdr->saddr);
		}
		@@ -978,7 +978,7 @@ ip6ip6_tnl_xmit(struct sk_buff skb, struct net_device dev)
		__u32 mtu;
		int err;

		if (!ip6_tnl_xmit_ctl(t) \|\| ip6ip6_tnl_addr_conflict(t, ipv6h))
		if (!ip6_tnl_xmit_ctl(t) \|\| ip6_tnl_addr_conflict(t, ipv6h))
		return -1;

		if ((offset = parse_tlv_tnl_enc_lim(skb, skb->nh.raw)) > 0) {
		@@ -1068,7 +1068,7 @@ static void ip6_tnl_set_cap(struct ip6_tnl *t)
		}
		}

		static void ip6ip6_tnl_link_config(struct ip6_tnl *t)
		static void ip6_tnl_link_config(struct ip6_tnl *t)
		{
		struct net_device *dev = t->dev;
		struct ip6_tnl_parm *p = &t->parms;
		@@ -1121,17 +1121,17 @@ static void ip6ip6_tnl_link_config(struct ip6_tnl *t)
		}

		/**
		* ip6ip6_tnl_change - update the tunnel parameters
		* ip6_tnl_change - update the tunnel parameters
		* @t: tunnel to be changed
		* @p: tunnel configuration parameters
		* @active: != 0 if tunnel is ready for use
		*
		* Description:
		* ip6ip6_tnl_change() updates the tunnel parameters
		* ip6_tnl_change() updates the tunnel parameters
		**/

		static int
		ip6ip6_tnl_change(struct ip6_tnl t, struct ip6_tnl_parm p)
		ip6_tnl_change(struct ip6_tnl t, struct ip6_tnl_parm p)
		{
		ipv6_addr_copy(&t->parms.laddr, &p->laddr);
		ipv6_addr_copy(&t->parms.raddr, &p->raddr);
		@@ -1141,18 +1141,18 @@ ip6ip6_tnl_change(struct ip6_tnl t, struct ip6_tnl_parm p)
		t->parms.flowinfo = p->flowinfo;
		t->parms.link = p->link;
		ip6_tnl_dst_reset(t);
		ip6ip6_tnl_link_config(t);
		ip6_tnl_link_config(t);
		return 0;
		}

		/**
		* ip6ip6_tnl_ioctl - configure ipv6 tunnels from userspace
		* ip6_tnl_ioctl - configure ipv6 tunnels from userspace
		* @dev: virtual device associated with tunnel
		* @ifr: parameters passed from userspace
		* @cmd: command to be performed
		*
		* Description:
		* ip6ip6_tnl_ioctl() is used for managing IPv6 tunnels
		* ip6_tnl_ioctl() is used for managing IPv6 tunnels
		* from userspace.
		*
		* The possible commands are the following:
		@@ -1174,7 +1174,7 @@ ip6ip6_tnl_change(struct ip6_tnl t, struct ip6_tnl_parm p)
		**/

		static int
		ip6ip6_tnl_ioctl(struct net_device dev, struct ifreq ifr, int cmd)
		ip6_tnl_ioctl(struct net_device dev, struct ifreq ifr, int cmd)
		{
		int err = 0;
		struct ip6_tnl_parm p;
		@@ -1182,12 +1182,12 @@ ip6ip6_tnl_ioctl(struct net_device dev, struct ifreq ifr, int cmd)

		switch (cmd) {
		case SIOCGETTUNNEL:
		if (dev == ip6ip6_fb_tnl_dev) {
		if (dev == ip6_fb_tnl_dev) {
		if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof (p))) {
		err = -EFAULT;
		break;
		}
		t = ip6ip6_tnl_locate(&p, 0);
		t = ip6_tnl_locate(&p, 0);
		}
		if (t == NULL)
		t = netdev_priv(dev);
		@@ -1207,8 +1207,8 @@ ip6ip6_tnl_ioctl(struct net_device dev, struct ifreq ifr, int cmd)
		err = -EINVAL;
		if (p.proto != IPPROTO_IPV6)
		break;
		t = ip6ip6_tnl_locate(&p, cmd == SIOCADDTUNNEL);
		if (dev != ip6ip6_fb_tnl_dev && cmd == SIOCCHGTUNNEL) {
		t = ip6_tnl_locate(&p, cmd == SIOCADDTUNNEL);
		if (dev != ip6_fb_tnl_dev && cmd == SIOCCHGTUNNEL) {
		if (t != NULL) {
		if (t->dev != dev) {
		err = -EEXIST;
		@@ -1217,9 +1217,9 @@ ip6ip6_tnl_ioctl(struct net_device dev, struct ifreq ifr, int cmd)
		} else
		t = netdev_priv(dev);

		ip6ip6_tnl_unlink(t);
		err = ip6ip6_tnl_change(t, &p);
		ip6ip6_tnl_link(t);
		ip6_tnl_unlink(t);
		err = ip6_tnl_change(t, &p);
		ip6_tnl_link(t);
		netdev_state_change(dev);
		}
		if (t) {
		@@ -1235,15 +1235,15 @@ ip6ip6_tnl_ioctl(struct net_device dev, struct ifreq ifr, int cmd)
		if (!capable(CAP_NET_ADMIN))
		break;

		if (dev == ip6ip6_fb_tnl_dev) {
		if (dev == ip6_fb_tnl_dev) {
		err = -EFAULT;
		if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof (p)))
		break;
		err = -ENOENT;
		if ((t = ip6ip6_tnl_locate(&p, 0)) == NULL)
		if ((t = ip6_tnl_locate(&p, 0)) == NULL)
		break;
		err = -EPERM;
		if (t->dev == ip6ip6_fb_tnl_dev)
		if (t->dev == ip6_fb_tnl_dev)
		break;
		dev = t->dev;
		}
		@@ -1257,20 +1257,20 @@ ip6ip6_tnl_ioctl(struct net_device dev, struct ifreq ifr, int cmd)
		}

		/**
		* ip6ip6_tnl_get_stats - return the stats for tunnel device
		* ip6_tnl_get_stats - return the stats for tunnel device
		* @dev: virtual device associated with tunnel
		*
		* Return: stats for device
		**/

		static struct net_device_stats *
		ip6ip6_tnl_get_stats(struct net_device *dev)
		ip6_tnl_get_stats(struct net_device *dev)
		{
		return &(((struct ip6_tnl *)netdev_priv(dev))->stat);
		}

		/**
		* ip6ip6_tnl_change_mtu - change mtu manually for tunnel device
		* ip6_tnl_change_mtu - change mtu manually for tunnel device
		* @dev: virtual device associated with tunnel
		* @new_mtu: the new mtu
		*
		@@ -1280,7 +1280,7 @@ ip6ip6_tnl_get_stats(struct net_device *dev)
		**/

		static int
		ip6ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
		ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
		{
		if (new_mtu < IPV6_MIN_MTU) {
		return -EINVAL;
		@@ -1290,22 +1290,22 @@ ip6ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
		}

		/**
		* ip6ip6_tnl_dev_setup - setup virtual tunnel device
		* ip6_tnl_dev_setup - setup virtual tunnel device
		* @dev: virtual device associated with tunnel
		*
		* Description:
		* Initialize function pointers and device parameters
		**/

		static void ip6ip6_tnl_dev_setup(struct net_device *dev)
		static void ip6_tnl_dev_setup(struct net_device *dev)
		{
		SET_MODULE_OWNER(dev);
		dev->uninit = ip6ip6_tnl_dev_uninit;
		dev->uninit = ip6_tnl_dev_uninit;
		dev->destructor = free_netdev;
		dev->hard_start_xmit = ip6_tnl_xmit;
		dev->get_stats = ip6ip6_tnl_get_stats;
		dev->do_ioctl = ip6ip6_tnl_ioctl;
		dev->change_mtu = ip6ip6_tnl_change_mtu;
		dev->get_stats = ip6_tnl_get_stats;
		dev->do_ioctl = ip6_tnl_ioctl;
		dev->change_mtu = ip6_tnl_change_mtu;

		dev->type = ARPHRD_TUNNEL6;
		dev->hard_header_len = LL_MAX_HEADER + sizeof (struct ipv6hdr);
		@@ -1316,12 +1316,12 @@ static void ip6ip6_tnl_dev_setup(struct net_device *dev)


		/**
		* ip6ip6_tnl_dev_init_gen - general initializer for all tunnel devices
		* ip6_tnl_dev_init_gen - general initializer for all tunnel devices
		* @dev: virtual device associated with tunnel
		**/

		static inline void
		ip6ip6_tnl_dev_init_gen(struct net_device *dev)
		ip6_tnl_dev_init_gen(struct net_device *dev)
		{
		struct ip6_tnl *t = netdev_priv(dev);
		t->fl.proto = IPPROTO_IPV6;
		@@ -1330,31 +1330,31 @@ ip6ip6_tnl_dev_init_gen(struct net_device *dev)
		}

		/**
		* ip6ip6_tnl_dev_init - initializer for all non fallback tunnel devices
		* ip6_tnl_dev_init - initializer for all non fallback tunnel devices
		* @dev: virtual device associated with tunnel
		**/

		static int
		ip6ip6_tnl_dev_init(struct net_device *dev)
		ip6_tnl_dev_init(struct net_device *dev)
		{
		struct ip6_tnl *t = netdev_priv(dev);
		ip6ip6_tnl_dev_init_gen(dev);
		ip6ip6_tnl_link_config(t);
		ip6_tnl_dev_init_gen(dev);
		ip6_tnl_link_config(t);
		return 0;
		}

		/**
		* ip6ip6_fb_tnl_dev_init - initializer for fallback tunnel device
		* ip6_fb_tnl_dev_init - initializer for fallback tunnel device
		* @dev: fallback device
		*
		* Return: 0
		**/

		static int
		ip6ip6_fb_tnl_dev_init(struct net_device *dev)
		ip6_fb_tnl_dev_init(struct net_device *dev)
		{
		struct ip6_tnl *t = netdev_priv(dev);
		ip6ip6_tnl_dev_init_gen(dev);
		ip6_tnl_dev_init_gen(dev);
		dev_hold(dev);
		tnls_wc[0] = t;
		return 0;
		@@ -1383,27 +1383,27 @@ static int __init ip6_tunnel_init(void)
		int err;

		if (xfrm6_tunnel_register(&ip4ip6_handler, AF_INET)) {
		printk(KERN_ERR "ip4ip6 init: can't register tunnel\n");
		printk(KERN_ERR "ip6_tunnel init: can't register ip4ip6\n");
		err = -EAGAIN;
		goto out;
		}

		if (xfrm6_tunnel_register(&ip6ip6_handler, AF_INET6)) {
		printk(KERN_ERR "ip6ip6 init: can't register tunnel\n");
		printk(KERN_ERR "ip6_tunnel init: can't register ip6ip6\n");
		err = -EAGAIN;
		goto unreg_ip4ip6;
		}
		ip6ip6_fb_tnl_dev = alloc_netdev(sizeof(struct ip6_tnl), "ip6tnl0",
		ip6ip6_tnl_dev_setup);
		ip6_fb_tnl_dev = alloc_netdev(sizeof(struct ip6_tnl), "ip6tnl0",
		ip6_tnl_dev_setup);

		if (!ip6ip6_fb_tnl_dev) {
		if (!ip6_fb_tnl_dev) {
		err = -ENOMEM;
		goto fail;
		}
		ip6ip6_fb_tnl_dev->init = ip6ip6_fb_tnl_dev_init;
		ip6_fb_tnl_dev->init = ip6_fb_tnl_dev_init;

		if ((err = register_netdev(ip6ip6_fb_tnl_dev))) {
		free_netdev(ip6ip6_fb_tnl_dev);
		if ((err = register_netdev(ip6_fb_tnl_dev))) {
		free_netdev(ip6_fb_tnl_dev);
		goto fail;
		}
		return 0;
		@@ -1415,7 +1415,7 @@ static int __init ip6_tunnel_init(void)
		return err;
		}

		static void __exit ip6ip6_destroy_tunnels(void)
		static void __exit ip6_tnl_destroy_tunnels(void)
		{
		int h;
		struct ip6_tnl *t;
		@@ -1436,13 +1436,13 @@ static void __exit ip6ip6_destroy_tunnels(void)
		static void __exit ip6_tunnel_cleanup(void)
		{
		if (xfrm6_tunnel_deregister(&ip4ip6_handler, AF_INET))
		printk(KERN_INFO "ip4ip6 close: can't deregister tunnel\n");
		printk(KERN_INFO "ip6_tunnel close: can't deregister ip4ip6\n");

		if (xfrm6_tunnel_deregister(&ip6ip6_handler, AF_INET6))
		printk(KERN_INFO "ip6ip6 close: can't deregister tunnel\n");
		printk(KERN_INFO "ip6_tunnel close: can't deregister ip6ip6\n");

		rtnl_lock();
		ip6ip6_destroy_tunnels();
		ip6_tnl_destroy_tunnels();
		rtnl_unlock();
		}