| From 1814b8d9a23c63988bdd6083ee25b87403a2bbae Mon Sep 17 00:00:00 2001 |
| From: Gao feng <gaofeng@cn.fujitsu.com> |
| Date: Sun, 2 Jun 2013 22:16:21 +0000 |
| Subject: ipv6: assign rt6_info to inet6_ifaddr in init_loopback |
| |
| From: Gao feng <gaofeng@cn.fujitsu.com> |
| |
| [ Upstream commit 534c877928a16ae5f9776436a497109639bf67dc ] |
| |
| Commit 25fb6ca4ed9cad72f14f61629b68dc03c0d9713f |
| "net IPv6 : Fix broken IPv6 routing table after loopback down-up" |
| forgot to assign rt6_info to the inet6_ifaddr. |
| When disable the net device, the rt6_info which allocated |
| in init_loopback will not be destroied in __ipv6_ifa_notify. |
| |
| This will trigger the waring message below |
| [23527.916091] unregister_netdevice: waiting for tap0 to become free. Usage count = 1 |
| |
| Reported-by: Arkadiusz Miskiewicz <a.miskiewicz@gmail.com> |
| Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> |
| Signed-off-by: David S. Miller <davem@davemloft.net> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| --- |
| net/ipv6/addrconf.c | 4 +++- |
| 1 file changed, 3 insertions(+), 1 deletion(-) |
| |
| --- a/net/ipv6/addrconf.c |
| +++ b/net/ipv6/addrconf.c |
| @@ -2432,8 +2432,10 @@ static void init_loopback(struct net_dev |
| sp_rt = addrconf_dst_alloc(idev, &sp_ifa->addr, 0); |
| |
| /* Failure cases are ignored */ |
| - if (!IS_ERR(sp_rt)) |
| + if (!IS_ERR(sp_rt)) { |
| + sp_ifa->rt = sp_rt; |
| ip6_ins_rt(sp_rt); |
| + } |
| } |
| read_unlock_bh(&idev->lock); |
| } |
