From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: jejb@linux.vnet.ibm.com, Jason Yan <yanaijie@huawei.com>
Cc: "Martin K . Petersen" <martin.petersen@oracle.com>,
linux-scsi@vger.kernel.org,
syzbot+d44b35ecfb807e5af0b5@syzkaller.appspotmail.com,
linux-kernel@vger.kernel.org, bvanassche@acm.org, hch@lst.de,
hare@suse.com
Subject: Re: [PATCH v2] scsi: fix WARNING in scsi_alloc_sgtables
Date: Tue, 26 Jul 2022 23:15:13 -0400 [thread overview]
Message-ID: <165889169551.689.5999254456807328126.b4-ty@oracle.com> (raw)
In-Reply-To: <20220720025120.3226770-1-yanaijie@huawei.com>
On Wed, 20 Jul 2022 10:51:20 +0800, Jason Yan wrote:
> As explained in SG_IO howto[1]:
>
> "If iovec_count is non-zero then 'dxfer_len' should be equal to the sum
> of iov_len lengths. If not, the minimum of the two is the transfer
> length."
>
> When iovec_count is non-zero and dxfer_len is zero, the sg_io() just
> genarated a null bio, and finally caused a warning below. To fix it,
> skip generating a bio for this request if dxfer_len is zero.
>
> [...]
Applied to 5.19/scsi-fixes, thanks!
[1/1] scsi: fix WARNING in scsi_alloc_sgtables
https://git.kernel.org/mkp/scsi/c/d9a434fa0c12
--
Martin K. Petersen Oracle Linux Engineering
prev parent reply other threads:[~2022-07-27 3:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-20 2:51 Jason Yan
2022-07-22 21:09 ` Bart Van Assche
2022-07-27 3:15 ` Martin K. Petersen [this message]
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