ndisc: Add missing strategies for per-device retrans timer/reachable time settings.

Noticed from Al Viro <viro@ftp.linux.org.uk> via David Miller
<davem@davemloft.net>.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 9 insertions, 5 deletions

diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index 9c451ff2f4f4..a01b7c4dc763 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -129,6 +129,10 @@ extern int 			ndisc_ifinfo_sysctl_change(struct ctl_table *ctl,
                                                            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,
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e591e09e5e4e..8dd9155502b5 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4242,7 +4242,7 @@ static void addrconf_sysctl_register(struct inet6_dev *idev)
         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);
 }
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index a55fc05b8125..282fdb31f8ed 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1727,10 +1727,10 @@ int ndisc_ifinfo_sysctl_change(struct ctl_table *ctl, int write, struct file * f
         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;