linux-kernel - Re: [PATCH] scsi: ufs: Correct the lun used in eh_device_reset

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Message-ID: <1609317234.9795.11.camel@mtkswgap22>
Date:   Wed, 30 Dec 2020 16:33:54 +0800
From:   Stanley Chu <stanley.chu@...iatek.com>
To:     Can Guo <cang@...eaurora.org>
CC:     <asutoshd@...eaurora.org>, <nguyenb@...eaurora.org>,
        <hongwus@...eaurora.org>, <ziqichen@...eaurora.org>,
        <rnayak@...eaurora.org>, <linux-scsi@...r.kernel.org>,
        <kernel-team@...roid.com>, <saravanak@...gle.com>,
        <salyzyn@...gle.com>, Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Bean Huo <beanhuo@...ron.com>,
        Bart Van Assche <bvanassche@....org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] scsi: ufs: Correct the lun used in
 eh_device_reset_handler() callback

On Mon, 2020-12-28 at 04:04 -0800, Can Guo wrote:
> Users can initiate resets to specific SCSI device/target/host through
> IOCTL. When this happens, the SCSI cmd passed to eh_device/target/host
> _reset_handler() callbacks is initialized with a request whose tag is -1.
> So, in this case, it is not right for eh_device_reset_handler() callback
> to count on the lun get from hba->lrb[-1]. Fix it by getting lun from the
> SCSI device associated with the SCSI cmd.
> 
> Signed-off-by: Can Guo <cang@...eaurora.org>

Reviewed-by: Stanley Chu <stanley.chu@...iatek.com>