netdev - Re: [PATCH net-next 0/4] ipv6: remove addrconf reliance on loopback

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Message-ID: <CANn89iK+0E2n5r6TWOt32RBey=nJ6f75+SFAvRqskjGfSHT4hA@mail.gmail.com>
Date:   Fri, 11 Feb 2022 18:38:39 -0800
From:   Eric Dumazet <edumazet@...gle.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Eric Dumazet <eric.dumazet@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Mahesh Bandewar <maheshb@...gle.com>
Subject: Re: [PATCH net-next 0/4] ipv6: remove addrconf reliance on loopback

On Fri, Feb 11, 2022 at 3:57 PM Jakub Kicinski <kuba@...nel.org> wrote:
>
> On Thu, 10 Feb 2022 13:42:27 -0800 Eric Dumazet wrote:
> > Second patch in this series removes IPv6 requirement about the netns
> > loopback device being the last device being dismantled.
>
> Great!
>
> > This was needed because rt6_uncached_list_flush_dev()
> > and ip6_dst_ifdown() had to switch dst dev to a known
> > device (loopback).
> >
> > Instead of loopback, we can use the (hidden) blackhole_netdev
> > which is also always there.
> >
> > This will allow future simplfications of netdev_run_to()
>
> Should I take a stab at it, or is it on your todo list, anyway?

I have not started this yet, I will be happy to review your patches, thanks !