linux-kernel - Re: [PATCH v2] scsi: ufs: Fix deadlock issue in ufshcd_wait_for_doorbell

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Message-Id: <164023594702.4594.97056831726187754.b4-ty@oracle.com>
Date:   Thu, 23 Dec 2021 00:09:22 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     beanhuo@...ron.com, stanley.chu@...iatek.com, cang@...eaurora.org,
        bvanassche@....org, avri.altman@....com, alim.akhtar@...sung.com,
        tomas.winkler@...el.com, asutoshd@...eaurora.org,
        Bean Huo <huobean@...il.com>, jejb@...ux.ibm.com
Cc:     "Martin K . Petersen" <martin.petersen@...cle.com>,
        Amit Pundir <amit.pundir@...aro.org>,
        John Stultz <john.stultz@...aro.org>,
        linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
        YongQin Liu <yongqin.liu@...aro.org>
Subject: Re: [PATCH v2] scsi: ufs: Fix deadlock issue in ufshcd_wait_for_doorbell_clr()

On Tue, 14 Dec 2021 13:05:37 +0100, Bean Huo wrote:

> From: Bean Huo <beanhuo@...ron.com>
> 
> Call shost_for_each_device() with holding host->host_lock will cause
> a deadlock situation, which will cause the system to stall (the log
> as follow). Fix this issue by using __shost_for_each_device() in
> ufshcd_pending_cmds().
> 
> [...]

Applied to 5.17/scsi-queue, thanks!

[1/1] scsi: ufs: Fix deadlock issue in ufshcd_wait_for_doorbell_clr()
      https://git.kernel.org/mkp/scsi/c/99c66a8868e3

-- 
Martin K. Petersen	Oracle Linux Engineering