netdev - Re: [PATCH net-next v3 2/2] bnxt_en: implement netdev_queue_mgmt

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Date: Fri, 21 Jun 2024 17:20:53 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: David Wei <dw@...idwei.uk>
Cc: Michael Chan <michael.chan@...adcom.com>, Andy Gospodarek
 <andrew.gospodarek@...adcom.com>, Adrian Alvarado
 <adrian.alvarado@...adcom.com>, Somnath Kotur <somnath.kotur@...adcom.com>,
 netdev@...r.kernel.org, Pavel Begunkov <asml.silence@...il.com>, David
 Ahern <dsahern@...nel.org>, "David S. Miller" <davem@...emloft.net>, Eric
 Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>
Subject: Re: [PATCH net-next v3 2/2] bnxt_en: implement
 netdev_queue_mgmt_ops

On Tue, 18 Jun 2024 23:29:31 -0700 David Wei wrote:
> +	/* At this point, this NAPI instance has another page pool associated
> +	 * with it. Disconnect here before freeing the old page pool to avoid
> +	 * warnings.
> +	 */
> +	rxr->page_pool->p.napi = NULL;
> +	page_pool_destroy(rxr->page_pool);
> +	rxr->page_pool = NULL;

What's the warning you hit?
We should probably bring back page_pool_unlink_napi(), 
if this is really needed.