netdev - Re: [PATCH net-next v7 07/16] xsk: Extend xsk_rcv

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Message-ID: <aW2Mr5Wbd4S2QJbS@mini-arch>
Date: Sun, 18 Jan 2026 17:45:19 -0800
From: Stanislav Fomichev <stfomichev@...il.com>
To: Daniel Borkmann <daniel@...earbox.net>
Cc: netdev@...r.kernel.org, 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 v7 07/16] xsk: Extend xsk_rcv_check validation

On 01/15, Daniel Borkmann wrote:
> xsk_rcv_check tests for inbound packets to see whether they match
> the bound AF_XDP socket. Refactor the test into a small helper
> xsk_dev_queue_valid and move the validation against xs->dev and
> xs->queue_id there.
> 
> The fast-path case stays in place and allows for quick return in
> xsk_dev_queue_valid. If it fails, the validation is extended to
> check whether the AF_XDP socket is bound against a leased queue,
> and if the case then the test is redone.
> 
> Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
> Co-developed-by: David Wei <dw@...idwei.uk>
> Signed-off-by: David Wei <dw@...idwei.uk>

Acked-by: Stanislav Fomichev <sdf@...ichev.me>