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From: Avri Altman <Avri.Altman@wdc.com>
To: "Martin K. Petersen" <martin.petersen@oracle.com>,
	Can Guo <cang@codeaurora.org>
Cc: "asutoshd@codeaurora.org" <asutoshd@codeaurora.org>,
	"nguyenb@codeaurora.org" <nguyenb@codeaurora.org>,
	"hongwus@codeaurora.org" <hongwus@codeaurora.org>,
	"rnayak@codeaurora.org" <rnayak@codeaurora.org>,
	"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
	"kernel-team@android.com" <kernel-team@android.com>,
	"saravanak@google.com" <saravanak@google.com>,
	"salyzyn@google.com" <salyzyn@google.com>,
	Alim Akhtar <alim.akhtar@samsung.com>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Stanley Chu <stanley.chu@mediatek.com>,
	Bean Huo <beanhuo@micron.com>,
	Bart Van Assche <bvanassche@acm.org>,
	Venkat Gopalakrishnan <venkatg@codeaurora.org>,
	Tomas Winkler <tomas.winkler@intel.com>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	open list <linux-kernel@vger.kernel.org>,
	"moderated list:ARM/Mediatek SoC support" 
	<linux-arm-kernel@lists.infradead.org>,
	"moderated list:ARM/Mediatek SoC support" 
	<linux-mediatek@lists.infradead.org>
Subject: RE: [PATCH v6 2/2] scsi: ufs: Do not rely on prefetched data
Date: Fri, 27 Mar 2020 07:49:04 +0000
Message-ID: <SN6PR04MB46402B83E0E69E2309A9EDA8FCCC0@SN6PR04MB4640.namprd04.prod.outlook.com> (raw)
In-Reply-To: <yq1lfnmcxmc.fsf@oracle.com>



> 
> Can,
> 
> > We were setting bActiveICCLevel attribute for UFS device only once but
> > type of this attribute has changed from persistent to volatile since
> > UFS device specification v2.1. This attribute is set to the default
> > value after power cycle or hardware reset event. It isn't safe to rely
> > on prefetched data (only used for bActiveICCLevel attribute
> > now). Hence this change removes the code related to data prefetching
> > and set this parameter on every attempt to probe the UFS device.
> 
> Applied patch #2 to 5.7/scsi-queue. Awaiting Avri's feedback on patch
> #1. Thanks!
It looks fine.
Thanks,
Avri

> 
> --
> Martin K. Petersen      Oracle Linux Engineering

      reply index

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-26  9:25 [PATCH v6 0/2] UFS driver general fixes bundle 2 Can Guo
2020-03-26  9:25 ` [PATCH v6 1/2] scsi: ufs: Clean up ufshcd_scale_clks() and clock scaling error out path Can Guo
2020-03-26 10:00   ` [EXT] " Bean Huo (beanhuo)
2020-03-27 17:04   ` Martin K. Petersen
     [not found] ` <1585214742-5466-3-git-send-email-cang@codeaurora.org>
2020-03-27  2:58   ` [PATCH v6 2/2] scsi: ufs: Do not rely on prefetched data Martin K. Petersen
2020-03-27  7:49     ` Avri Altman [this message]

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