linux-kernel - Re: [PATCH v4 1/1] scsi: ufs: core: Flush exception handling work when RPM level is zero

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Message-ID: <177051564483.3805738.2015850071936649322.b4-ty@oracle.com>
Date: Sat,  7 Feb 2026 21:01:49 -0500
From: "Martin K. Petersen" <martin.petersen@...cle.com>
To: James.Bottomley@...senPartnership.com, Thomas Yen <thomasyen@...gle.com>
Cc: "Martin K . Petersen" <martin.petersen@...cle.com>,
        Stable Tree <stable@...r.kernel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Bart Van Assche <bvanassche@....org>,
        Peter Wang <peter.wang@...iatek.com>, Bean Huo <beanhuo@...ron.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        "Bao D. Nguyen" <quic_nguyenb@...cinc.com>,
        Subhash Jadavani <subhashj@...eaurora.org>,
        Dolev Raviv <draviv@...eaurora.org>,
        Sujit Reddy Thumma <sthumma@...eaurora.org>,
        "open list:UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER" <linux-scsi@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 1/1] scsi: ufs: core: Flush exception handling work when RPM level is zero

On Fri, 30 Jan 2026 00:51:51 +0800, Thomas Yen wrote:

> Ensure that the exception event handling work is explicitly flushed
> during suspend when the runtime power management level is set to
> UFS_PM_LVL_0.
> 
> When the RPM level is zero, the device power mode and link state both
> remain active. Previously, the UFS core driver bypassed flushing
> exception event handling jobs in this configuration. This created a race
> condition where the driver could attempt to access the host controller
> to handle an exception after the system had already entered a deep
> power-down state, resulting in a system crash.
> 
> [...]

Applied to 6.20/scsi-queue, thanks!

[1/1] scsi: ufs: core: Flush exception handling work when RPM level is zero
      https://git.kernel.org/mkp/scsi/c/f8ef441811ec

-- 
Martin K. Petersen