vti: revert flush x-netns xfrm cache when vti interface is removed

flow cache is removed in next commit.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 0192c255e5088394792cb55b416c46e39b5839fd..5ed63d25095062d44dacfd291e227290d24ea0ed 100644 (file)
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -584,33 +584,6 @@ static struct rtnl_link_ops vti_link_ops __read_mostly = {
        .get_link_net   = ip_tunnel_get_link_net,
 };
 
-static bool is_vti_tunnel(const struct net_device *dev)
-{
-       return dev->netdev_ops == &vti_netdev_ops;
-}
-
-static int vti_device_event(struct notifier_block *unused,
-                           unsigned long event, void *ptr)
-{
-       struct net_device *dev = netdev_notifier_info_to_dev(ptr);
-       struct ip_tunnel *tunnel = netdev_priv(dev);
-
-       if (!is_vti_tunnel(dev))
-               return NOTIFY_DONE;
-
-       switch (event) {
-       case NETDEV_DOWN:
-               if (!net_eq(tunnel->net, dev_net(dev)))
-                       xfrm_garbage_collect(tunnel->net);
-               break;
-       }
-       return NOTIFY_DONE;
-}
-
-static struct notifier_block vti_notifier_block __read_mostly = {
-       .notifier_call = vti_device_event,
-};
-
 static int __init vti_init(void)
 {
        const char *msg;
@@ -618,8 +591,6 @@ static int __init vti_init(void)
 
        pr_info("IPv4 over IPsec tunneling driver\n");
 
-       register_netdevice_notifier(&vti_notifier_block);
-
        msg = "tunnel device";
        err = register_pernet_device(&vti_net_ops);
        if (err < 0)
@@ -652,7 +623,6 @@ xfrm_proto_ah_failed:
 xfrm_proto_esp_failed:
        unregister_pernet_device(&vti_net_ops);
 pernet_dev_failed:
-       unregister_netdevice_notifier(&vti_notifier_block);
        pr_err("vti init: failed to register %s\n", msg);
        return err;
 }
@@ -664,7 +634,6 @@ static void __exit vti_fini(void)
        xfrm4_protocol_deregister(&vti_ah4_protocol, IPPROTO_AH);
        xfrm4_protocol_deregister(&vti_esp4_protocol, IPPROTO_ESP);
        unregister_pernet_device(&vti_net_ops);
-       unregister_netdevice_notifier(&vti_notifier_block);
 }
 
 module_init(vti_init);

diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 486c2305f53c258c1c68b6f04ba54c17bdcf7820..79444a4bfd6d245b66a7edcefe2b5b32801bf2c0 100644 (file)
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -1145,33 +1145,6 @@ static struct xfrm6_protocol vti_ipcomp6_protocol __read_mostly = {
        .priority       =       100,
 };
 
-static bool is_vti6_tunnel(const struct net_device *dev)
-{
-       return dev->netdev_ops == &vti6_netdev_ops;
-}
-
-static int vti6_device_event(struct notifier_block *unused,
-                            unsigned long event, void *ptr)
-{
-       struct net_device *dev = netdev_notifier_info_to_dev(ptr);
-       struct ip6_tnl *t = netdev_priv(dev);
-
-       if (!is_vti6_tunnel(dev))
-               return NOTIFY_DONE;
-
-       switch (event) {
-       case NETDEV_DOWN:
-               if (!net_eq(t->net, dev_net(dev)))
-                       xfrm_garbage_collect(t->net);
-               break;
-       }
-       return NOTIFY_DONE;
-}
-
-static struct notifier_block vti6_notifier_block __read_mostly = {
-       .notifier_call = vti6_device_event,
-};
-
 /**
  * vti6_tunnel_init - register protocol and reserve needed resources
  *
@@ -1182,8 +1155,6 @@ static int __init vti6_tunnel_init(void)
        const char *msg;
        int err;
 
-       register_netdevice_notifier(&vti6_notifier_block);
-
        msg = "tunnel device";
        err = register_pernet_device(&vti6_net_ops);
        if (err < 0)
@@ -1216,7 +1187,6 @@ xfrm_proto_ah_failed:
 xfrm_proto_esp_failed:
        unregister_pernet_device(&vti6_net_ops);
 pernet_dev_failed:
-       unregister_netdevice_notifier(&vti6_notifier_block);
        pr_err("vti6 init: failed to register %s\n", msg);
        return err;
 }
@@ -1231,7 +1201,6 @@ static void __exit vti6_tunnel_cleanup(void)
        xfrm6_protocol_deregister(&vti_ah6_protocol, IPPROTO_AH);
        xfrm6_protocol_deregister(&vti_esp6_protocol, IPPROTO_ESP);
        unregister_pernet_device(&vti6_net_ops);
-       unregister_netdevice_notifier(&vti6_notifier_block);
 }
 
 module_init(vti6_tunnel_init);