netdev - Re: [PATCH net-next v3 02/15] net: Implement netdev_nl_bind_queue

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Message-ID: <20251023192842.31a2efc0@kernel.org>
Date: Thu, 23 Oct 2025 19:28:42 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Daniel Borkmann <daniel@...earbox.net>
Cc: netdev@...r.kernel.org, bpf@...r.kernel.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 v3 02/15] net: Implement
 netdev_nl_bind_queue_doit

On Mon, 20 Oct 2025 18:23:42 +0200 Daniel Borkmann wrote:
> +void netdev_rx_queue_peer(struct net_device *src_dev,
> +			  struct netdev_rx_queue *src_rxq,
> +			  struct netdev_rx_queue *dst_rxq)
> +{
> +	netdev_assert_locked(src_dev);
> +	netdev_assert_locked(dst_rxq->dev);
> +
> +	netdev_hold(src_dev, &src_rxq->dev_tracker, GFP_KERNEL);

Isn't ->dev_tracker already used by sysfs?

Are you handling the underlying device going away?

> +	__netdev_rx_queue_peer(src_rxq, dst_rxq);
> +}