linux-kernel - Re: [PATCH] ublk: remove unnecessary checks in ublk_check_and_get

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Message-ID: <aRCgw_DpO9PVWu48@fedora>
Date: Sun, 9 Nov 2025 22:10:11 +0800
From: Ming Lei <ming.lei@...hat.com>
To: Caleb Sander Mateos <csander@...estorage.com>
Cc: Jens Axboe <axboe@...nel.dk>, linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ublk: remove unnecessary checks in
 ublk_check_and_get_req()

On Sat, Nov 08, 2025 at 03:17:45PM -0700, Caleb Sander Mateos wrote:
> ub = iocb->ki_filp->private_data cannot be NULL, as it's set in
> ublk_ch_open() before it returns succesfully. req->mq_hctx cannot be
> NULL as any inflight ublk request must belong to some queue. And
> req->mq_hctx->driver_data cannot be NULL as it's set to the ublk_queue
> pointer in ublk_init_hctx(). So drop the unnecessary checks.
> 
> Signed-off-by: Caleb Sander Mateos <csander@...estorage.com>

Looks fine,

Reviewed-by: Ming Lei <ming.lei@...hat.com>


Thanks,
Ming