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ip6_tunnel: Use ip6_tnl_dev_init as the ndo_init function.

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ip6_tnl_dev_init() sets the dev->iflink via a call to
ip6_tnl_link_config(). After that, register_netdevice()
sets dev->iflink = -1. So we loose the iflink configuration
for ipv6 tunnels. Fix this by using ip6_tnl_dev_init() as the
ndo_init function. Then ip6_tnl_dev_init() is called after
dev->iflink is set to -1 from register_netdevice().

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Steffen Klassert 2014-11-03 09:19:27 +01:00 committed by David S. Miller
parent 3ce9b20f19
commit 6c6151daaf
1 changed files with 1 additions and 9 deletions
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10
net/ipv6/ip6_tunnel.c
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@ -272,9 +272,6 @@ static int ip6_tnl_create2(struct net_device *dev)
int err;
t = netdev_priv(dev);
err = ip6_tnl_dev_init(dev);
if (err < 0)
goto out;
err = register_netdevice(dev);
if (err < 0)
@ -1462,6 +1459,7 @@ ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
static const struct net_device_ops ip6_tnl_netdev_ops = {
.ndo_init = ip6_tnl_dev_init,
.ndo_uninit = ip6_tnl_dev_uninit,
.ndo_start_xmit = ip6_tnl_xmit,
.ndo_do_ioctl = ip6_tnl_ioctl,
@ -1546,16 +1544,10 @@ static int __net_init ip6_fb_tnl_dev_init(struct net_device *dev)
struct ip6_tnl *t = netdev_priv(dev);
struct net *net = dev_net(dev);
struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
int err = ip6_tnl_dev_init_gen(dev);
if (err)
return err;
t->parms.proto = IPPROTO_IPV6;
dev_hold(dev);
ip6_tnl_link_config(t);
rcu_assign_pointer(ip6n->tnls_wc[0], t);
return 0;
}