From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Chaotian Jing <chaotian.jing@mediatek.com>
Cc: <James.Bottomley@HansenPartnership.com>,
<martin.petersen@oracle.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
<linux-scsi@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<srv_heupstream@mediatek.com>, <stable@vger.kernel.org>,
Bart Van Assche <bvanassche@acm.org>
Subject: Re: [PATCH] scsi: fix the return value of scsi_logical_block_count
Date: Mon, 12 Aug 2024 21:52:52 -0400 [thread overview]
Message-ID: <yq1ttfpw5zs.fsf@ca-mkp.ca.oracle.com> (raw)
In-Reply-To: <20240807005907.12380-1-chaotian.jing@mediatek.com> (Chaotian Jing's message of "Wed, 7 Aug 2024 08:57:59 +0800")
Chaotian,
> @@ -236,7 +236,7 @@ static inline unsigned int scsi_logical_block_count(struct scsi_cmnd *scmd)
> {
> unsigned int shift = ilog2(scmd->device->sector_size) - SECTOR_SHIFT;
>
> - return blk_rq_bytes(scsi_cmd_to_rq(scmd)) >> shift;
> + return blk_rq_sectors(scsi_cmd_to_rq(scmd)) >> shift;
> }
There's no point in shifting twice by converting to sectors first.
Please just remove the SECTOR_SHIFT subtraction.
--
Martin K. Petersen Oracle Linux Engineering
next prev parent reply other threads:[~2024-08-13 1:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-07 0:57 [PATCH] scsi: fix the return value of scsi_logical_block_count Chaotian Jing
2024-08-13 1:52 ` Martin K. Petersen [this message]
2024-08-13 3:35 ` Chaotian Jing (井朝天)
-- strict thread matches above, loose matches on Subject: below --
2024-08-06 7:26 Chaotian Jing
2024-08-06 20:51 ` Bart Van Assche
2024-08-07 8:47 ` John Garry
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