diff options
| -rw-r--r-- | net/ipv4/devinet.c | 5 | ||||
| -rw-r--r-- | net/ipv6/addrconf.c | 4 |
2 files changed, 5 insertions, 4 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index 84bed40273a..25c8a42965d 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -165,9 +165,8 @@ struct in_device *inetdev_init(struct net_device *dev) NET_IPV4_NEIGH, "ipv4", NULL, NULL); #endif - /* Account for reference dev->ip_ptr */ + /* Account for reference dev->ip_ptr (below) */ in_dev_hold(in_dev); - rcu_assign_pointer(dev->ip_ptr, in_dev); #ifdef CONFIG_SYSCTL devinet_sysctl_register(in_dev, &in_dev->cnf); @@ -176,6 +175,8 @@ struct in_device *inetdev_init(struct net_device *dev) if (dev->flags & IFF_UP) ip_mc_up(in_dev); out: + /* we can receive as soon as ip_ptr is set -- do this last */ + rcu_assign_pointer(dev->ip_ptr, in_dev); return in_dev; out_kfree: kfree(in_dev); diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 9b0a9064315..171e5b55d7d 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -413,8 +413,6 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev) if (netif_carrier_ok(dev)) ndev->if_flags |= IF_READY; - /* protected by rtnl_lock */ - rcu_assign_pointer(dev->ip6_ptr, ndev); ipv6_mc_init_dev(ndev); ndev->tstamp = jiffies; @@ -425,6 +423,8 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev) NULL); addrconf_sysctl_register(ndev, &ndev->cnf); #endif + /* protected by rtnl_lock */ + rcu_assign_pointer(dev->ip6_ptr, ndev); return ndev; } |