linux-kernel - Re: [PATCH v2 08/14] scsi: add scsi_alloc_integrity

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Message-ID: <20230512135224.GE32242@lst.de>
Date:   Fri, 12 May 2023 15:52:24 +0200
From:   "hch@....de" <hch@....de>
To:     Jinyoung CHOI <j-young.choi@...sung.com>
Cc:     "axboe@...nel.dk" <axboe@...nel.dk>,
        "kbusch@...nel.org" <kbusch@...nel.org>, "hch@....de" <hch@....de>,
        "sagi@...mberg.me" <sagi@...mberg.me>,
        "jejb@...ux.ibm.com" <jejb@...ux.ibm.com>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "johannes.thumshirn@....com" <johannes.thumshirn@....com>,
        "kch@...dia.com" <kch@...dia.com>,
        "willy@...radead.org" <willy@...radead.org>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 08/14] scsi: add scsi_alloc_integrity_sgtables() for
 integrity process

On Wed, May 10, 2023 at 05:56:07PM +0900, Jinyoung CHOI wrote:
> +	if (WARN_ON_ONCE(!prot_sdb)) {
> +		/*
> +		 * This can happen if someone (e.g. multipath)
> +		 * queues a command to a device on an adapter
> +		 * that does not support DIX.
> +		 */
> +		return BLK_STS_IOERR;

Nit: expand the comment to take up all 80 characters now that you've
unindented it.