2 files changed, 28 insertions, 0 deletions

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index c708ca842298..95055f8c3f35 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -934,6 +934,11 @@ static int __init inet6_init(void)
         if (err)
                 goto out_unregister_sock;
 
+#ifdef CONFIG_SYSCTL
+        err = ipv6_static_sysctl_register();
+        if (err)
+                goto static_sysctl_fail;
+#endif
         /*
          *      ipngwg API draft makes clear that the correct semantics
          *      for TCP and UDP is to consider one TCP and UDP instance
@@ -1058,6 +1063,10 @@ ipmr_fail:
 icmp_fail:
         unregister_pernet_subsys(&inet6_net_ops);
 register_pernet_fail:
+#ifdef CONFIG_SYSCTL
+        ipv6_static_sysctl_unregister();
+static_sysctl_fail:
+#endif
         cleanup_ipv6_mibs();
 out_unregister_sock:
         sock_unregister(PF_INET6);
@@ -1113,6 +1122,9 @@ static void __exit inet6_exit(void)
         rawv6_exit();
 
         unregister_pernet_subsys(&inet6_net_ops);
+#ifdef CONFIG_SYSCTL
+        ipv6_static_sysctl_unregister();
+#endif
         cleanup_ipv6_mibs();
         proto_unregister(&rawv6_prot);
         proto_unregister(&udplitev6_prot);
diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
index 5c99274558bf..e6dfaeac6be3 100644
--- a/net/ipv6/sysctl_net_ipv6.c
+++ b/net/ipv6/sysctl_net_ipv6.c
@@ -150,3 +150,19 @@ void ipv6_sysctl_unregister(void)
         unregister_net_sysctl_table(ip6_header);
         unregister_pernet_subsys(&ipv6_sysctl_net_ops);
 }
+
+static struct ctl_table_header *ip6_base;
+
+int ipv6_static_sysctl_register(void)
+{
+        static struct ctl_table empty[1];
+        ip6_base = register_net_sysctl_rotable(net_ipv6_ctl_path, empty);
+        if (ip6_base == NULL)
+                return -ENOMEM;
+        return 0;
+}
+
+void ipv6_static_sysctl_unregister(void)
+{
+        unregister_net_sysctl_table(ip6_base);
+}