From: Hangbin Liu
Date: Thu, 7 Feb 2019 18:36:09 +0800
> When disabled IPv6 on boot up, since there is no ipv6 route tables, we should
> not call rt6_lookup. Fix them by checking if we have inet6_dev pointer on
> netdevice.
>
> v2: Fix idev reference leak, declarations and code mixing as Stefan
When disabled IPv6 on boot up, since there is no ipv6 route tables, we should
not call rt6_lookup. Fix them by checking if we have inet6_dev pointer on
netdevice.
v2: Fix idev reference leak, declarations and code mixing as Stefano,
Eric pointed. Since we only want to check if idev exists and
