void __user *buffer,
                                                           size_t *lenp,
                                                           loff_t *ppos);
+int ndisc_ifinfo_sysctl_strategy(ctl_table *ctl, int __user *name,
+                                int nlen, void __user *oldval,
+                                size_t __user *oldlenp,
+                                void __user *newval, size_t newlen);
 #endif
 
 extern void                    inet6_ifinfo_notify(int event,
 
        neigh_sysctl_register(idev->dev, idev->nd_parms, NET_IPV6,
                              NET_IPV6_NEIGH, "ipv6",
                              &ndisc_ifinfo_sysctl_change,
-                             NULL);
+                             ndisc_ifinfo_sysctl_strategy);
        __addrconf_sysctl_register(dev_net(idev->dev), idev->dev->name,
                        idev->dev->ifindex, idev, &idev->cnf);
 }
 
        return ret;
 }
 
-static int ndisc_ifinfo_sysctl_strategy(ctl_table *ctl, int __user *name,
-                                       int nlen, void __user *oldval,
-                                       size_t __user *oldlenp,
-                                       void __user *newval, size_t newlen)
+int ndisc_ifinfo_sysctl_strategy(ctl_table *ctl, int __user *name,
+                                int nlen, void __user *oldval,
+                                size_t __user *oldlenp,
+                                void __user *newval, size_t newlen)
 {
        struct net_device *dev = ctl->extra1;
        struct inet6_dev *idev;