Subject: Re: [PATCH net v2] ipv6: Handle race in addrconf_dad_work

From: Eric Dumazet <[email-masked]>
Date: Wed, 2 Oct 2019 16:11:50 -0700

On 10/2/19 3:36 PM, Eric Dumazet wrote:
> 
> 
> On 10/2/19 3:33 PM, David Ahern wrote:

>>
>> I flipped to IF_READY based on addrconf_ifdown and idev checks seeming
>> more appropriate.
>>
> 

Note that IF_READY is set in ipv6_add_dev() if all these conditions are true :

if (netif_running(dev) && addrconf_link_ready(dev))
     ndev->if_flags |= IF_READY;

So maybe in my setup IF_READY is set later from a notifier event ?