netdev - Re: [PATCH net-next v6 00/16] netkit: Support for io_uring zero-copy and AF

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Message-ID: <cb878929-0a07-40b1-b60d-57bc11b14bf6@iogearbox.net>
Date: Wed, 14 Jan 2026 23:39:18 +0100
From: Daniel Borkmann <daniel@...earbox.net>
To: netdev@...r.kernel.org
Cc: bpf@...r.kernel.org, kuba@...nel.org, davem@...emloft.net,
 razor@...ckwall.org, pabeni@...hat.com, willemb@...gle.com, sdf@...ichev.me,
 john.fastabend@...il.com, martin.lau@...nel.org, jordan@...fe.io,
 maciej.fijalkowski@...el.com, magnus.karlsson@...el.com, dw@...idwei.uk,
 toke@...hat.com, yangzhenze@...edance.com, wangdongdong.6@...edance.com
Subject: Re: [PATCH net-next v6 00/16] netkit: Support for io_uring zero-copy
 and AF_XDP

On 1/14/26 12:22 AM, Daniel Borkmann wrote:
> Containers use virtual netdevs to route traffic from a physical netdev
> in the host namespace. They do not have access to the physical netdev
> in the host and thus can't use memory providers or AF_XDP that require
> reconfiguring/restarting queues in the physical netdev.
> 
[...]
> 
> v5->v6:
>   - Fix nest_queue test in netdev_nl_queue_fill_one (Jakub/AI bot)
>   - Fix netdev notifier locking leak (Jakub/AI bot)
>   - Drop NETREG_UNREGISTERING WARN_ON_ONCE to avoid confusion (Stan)
>   - Remove slipped-in .gitignore cruft in net selftest (Stan)
>   - Fix Pylint warnings in net selftest (Jakub)
Saw in patchwork that AI found two more issues [0]. We've fixed them
locally and re-run Claude reviews with no new findings. So will push
out a v7 with this addressed tomorrow.

  [0] https://netdev-ai.bots.linux.dev/ai-review.html?id=557a6f3e-564b-4170-af37-23e23a16b446