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Message-ID: <20220211155739.66f5483b@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> Date: Fri, 11 Feb 2022 15:57:39 -0800 From: Jakub Kicinski <kuba@...nel.org> To: Eric Dumazet <eric.dumazet@...il.com> Cc: "David S . Miller" <davem@...emloft.net>, netdev <netdev@...r.kernel.org>, Eric Dumazet <edumazet@...gle.com>, Mahesh Bandewar <maheshb@...gle.com> Subject: Re: [PATCH net-next 0/4] ipv6: remove addrconf reliance on loopback 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? > and other parts of the stack like default_device_exit_batch(). > > Last two patches are optimizations for both IP families.
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