net: Simplify pppoe pernet operations.

Take advantage of the new pernet automatic storage management,
and stop using compatibility network namespace functions.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 30 deletions

diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c
index a1dcba255b06..a4ed776d823b 100644
--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -1139,59 +1139,37 @@ static struct pppox_proto pppoe_proto = {
 
 static __net_init int pppoe_init_net(struct net *net)
 {
-        struct pppoe_net *pn;
+        struct pppoe_net *pn = pppoe_pernet(net);
         struct proc_dir_entry *pde;
-        int err;
-
-        pn = kzalloc(sizeof(*pn), GFP_KERNEL);
-        if (!pn)
-                return -ENOMEM;
 
         rwlock_init(&pn->hash_lock);
 
-        err = net_assign_generic(net, pppoe_net_id, pn);
-        if (err)
-                goto out;
-
         pde = proc_net_fops_create(net, "pppoe", S_IRUGO, &pppoe_seq_fops);
 #ifdef CONFIG_PROC_FS
-        if (!pde) {
-                err = -ENOMEM;
-                goto out;
-        }
+        if (!pde)
+                return -ENOMEM;
 #endif
 
         return 0;
-
-out:
-        kfree(pn);
-        return err;
 }
 
 static __net_exit void pppoe_exit_net(struct net *net)
 {
-        struct pppoe_net *pn;
-
         proc_net_remove(net, "pppoe");
-        pn = net_generic(net, pppoe_net_id);
-        /*
-         * if someone has cached our net then
-         * further net_generic call will return NULL
-         */
-        net_assign_generic(net, pppoe_net_id, NULL);
-        kfree(pn);
 }
 
 static struct pernet_operations pppoe_net_ops = {
         .init = pppoe_init_net,
         .exit = pppoe_exit_net,
+        .id   = &pppoe_net_id,
+        .size = sizeof(struct pppoe_net),
 };
 
 static int __init pppoe_init(void)
 {
         int err;
 
-        err = register_pernet_gen_device(&pppoe_net_id, &pppoe_net_ops);
+        err = register_pernet_device(&pppoe_net_ops);
         if (err)
                 goto out;
 
@@ -1212,7 +1190,7 @@ static int __init pppoe_init(void)
 out_unregister_pppoe_proto:
         proto_unregister(&pppoe_sk_proto);
 out_unregister_net_ops:
-        unregister_pernet_gen_device(pppoe_net_id, &pppoe_net_ops);
+        unregister_pernet_device(&pppoe_net_ops);
 out:
         return err;
 }
@@ -1224,7 +1202,7 @@ static void __exit pppoe_exit(void)
         dev_remove_pack(&pppoes_ptype);
         unregister_pppox_proto(PX_PROTO_OE);
         proto_unregister(&pppoe_sk_proto);
-        unregister_pernet_gen_device(pppoe_net_id, &pppoe_net_ops);
+        unregister_pernet_device(&pppoe_net_ops);
 }
 
 module_init(pppoe_init);