linux-kernel - Re: [PATCH v3 9/9] scsi: ufs: Apply more limitations to user access

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Message-ID: <b1e555c2-a59a-2a63-79e0-7c22d5b7b698@acm.org>
Date:   Fri, 11 Jun 2021 14:03:33 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     Can Guo <cang@...eaurora.org>, asutoshd@...eaurora.org,
        nguyenb@...eaurora.org, hongwus@...eaurora.org,
        ziqichen@...eaurora.org, linux-scsi@...r.kernel.org,
        kernel-team@...roid.com
Cc:     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>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Bean Huo <beanhuo@...ron.com>,
        Stanley Chu <stanley.chu@...iatek.com>,
        Keoseong Park <keosung.park@...sung.com>,
        Jaegeuk Kim <jaegeuk@...nel.org>,
        Dinghao Liu <dinghao.liu@....edu.cn>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Kiwoong Kim <kwmad.kim@...sung.com>,
        Satya Tangirala <satyat@...gle.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 9/9] scsi: ufs: Apply more limitations to user access

On 6/9/21 9:43 PM, Can Guo wrote:
> Do not let user access HW if hba resume fails or hba is not in good state,
> otherwise it may lead to various stability issues.

Just like for the previous patch, I'm wondering whether or not such a
failure perhaps indicates a hardware bug?

Thanks,

Bart.