linux-kernel - Re: [PATCH v3 1/3] block: simplify calling convention of elv_unregister

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Message-ID: <ddb37191-c838-2c45-6a9e-a8eb02d18e8b@acm.org>
Date:   Thu, 9 Dec 2021 11:00:17 -0800
From:   Bart Van Assche <bvanassche@....org>
To:     Eric Biggers <ebiggers@...nel.org>, linux-block@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-mmc@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Hannes Reinecke <hare@...e.de>
Subject: Re: [PATCH v3 1/3] block: simplify calling convention of
 elv_unregister_queue()

On 12/7/21 5:35 PM, Eric Biggers wrote:
> From: Eric Biggers <ebiggers@...gle.com>
> 
> Make elv_unregister_queue() a no-op if q->elevator is NULL or is not
> registered.
> 
> This simplifies the existing callers, as well as the future caller in
> the error path of blk_register_queue().
> 
> Also don't bother checking whether q is NULL, since it never is.

Reviewed-by: Bart Van Assche <bvanassche@....org>