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Date: Thu, 19 Nov 2020 22:30:34 -0500 From: "Martin K. Petersen" <martin.petersen@...cle.com> To: Stanley Chu <stanley.chu@...iatek.com>, jejb@...ux.ibm.com, alim.akhtar@...sung.com, avri.altman@....com, linux-scsi@...r.kernel.org Cc: "Martin K . Petersen" <martin.petersen@...cle.com>, bvanassche@....org, cang@...eaurora.org, peter.wang@...iatek.com, asutoshd@...eaurora.org, chun-hung.wu@...iatek.com, alice.chao@...iatek.com, matthias.bgg@...il.com, chaotian.jing@...iatek.com, linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org, kuohong.wang@...iatek.com, jiajie.hao@...iatek.com, linux-arm-kernel@...ts.infradead.org, andy.teng@...iatek.com, beanhuo@...ron.com, cc.chou@...iatek.com Subject: Re: [PATCH v1] scsi: ufs: Fix race between shutdown and runtime resume flow On Thu, 19 Nov 2020 14:29:16 +0800, Stanley Chu wrote: > If UFS host device is in runtime-suspended state while > UFS shutdown callback is invoked, UFS device shall be > resumed for register accesses. Currently only UFS local > runtime resume function will be invoked to wake up the host. > This is not enough because if someone triggers runtime > resume from block layer, then race may happen between > shutdown and runtime resume flow, and finally lead to > unlocked register access. > > [...] Applied to 5.10/scsi-fixes, thanks! [1/1] scsi: ufs: Fix race between shutdown and runtime resume flow https://git.kernel.org/mkp/scsi/c/e92643db5148 -- Martin K. Petersen Oracle Linux Engineering
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