linux-kernel - RE: [<PATCH v1> 1/1] scsi: ufs: Resume ufs host before accessing ufs device

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Message-ID: <SN6PR04MB46402A704738FEC5C09FC140FCCE0@SN6PR04MB4640.namprd04.prod.outlook.com>
Date:   Wed, 25 Mar 2020 10:35:25 +0000
From:   Avri Altman <Avri.Altman@....com>
To:     Asutosh Das <asutoshd@...eaurora.org>,
        "cang@...eaurora.org" <cang@...eaurora.org>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>
CC:     Nitin Rawat <nitirawa@...eaurora.org>,
        "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Stanley Chu <stanley.chu@...iatek.com>,
        Bean Huo <beanhuo@...ron.com>,
        Tomas Winkler <tomas.winkler@...el.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: RE: [<PATCH v1> 1/1] scsi: ufs: Resume ufs host before accessing ufs
 device

> 
> From: Nitin Rawat <nitirawa@...eaurora.org>
> 
> As a part of sysfs reading of descriptors/attributes/flags,
> query commands should only be executed when hba's
> power runtime status is active.
> To guarantee this, add pm_runtime_get/put_sync()
> to those paths where query commands are sent.
> 
> Signed-off-by: Nitin Rawat <nitirawa@...eaurora.org>
> Signed-off-by: Asutosh Das <asutoshd@...eaurora.org>
Reviewed-by: Avri Altman <avri.altman@....com>