linux-kernel - Re: [PATCH v5 1/7] scsi: ufs: Add "wb_on" sysfs node to control WB on/off

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Date:   Wed, 23 Dec 2020 09:28:45 +0100
From:   Bean Huo <huobean@...il.com>
To:     Can Guo <cang@...eaurora.org>
Cc:     Stanley Chu <stanley.chu@...iatek.com>, alim.akhtar@...sung.com,
        avri.altman@....com, asutoshd@...eaurora.org, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, beanhuo@...ron.com, bvanassche@....org,
        tomas.winkler@...el.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 1/7] scsi: ufs: Add "wb_on" sysfs node to control WB
 on/off

On Wed, 2020-12-23 at 09:31 +0800, Can Guo wrote:
> I don't see why removing the sysfs nodes during ufshcd_shutdown() is
> a
> concern to customer - we should do whatever is needed to protect LLD
> contexts from user space intervene. What do you think?

The sysfs nodes can be removed only when the device is remvoed.

Bean