From: "Martin K. Petersen" <martin.petersen-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
To: Stanley Chu <stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
Cc: sthumma-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
martin.petersen-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org,
marc.w.gonzalez-GANU6spQydw@public.gmane.org,
subhashj-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
chun-hung.wu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
kuohong.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
peter.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
evgreen-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org,
avri.altman-Sjgp3cTcYWE@public.gmane.org,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
ygardi-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
alim.akhtar-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org,
andy.teng-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
pedrom.sousa-HKixBCOQz3hWk0Htik3J/w@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
beanhuo-AL4WhLSQfzjQT0dZR+AlfA@public.gmane.org
Subject: Re: [PATCH v2] scsi: ufs: Avoid runtime suspend possibly being blocked forever
Date: Tue, 18 Jun 2019 22:51:10 -0400 [thread overview]
Message-ID: <yq18stywan5.fsf@oracle.com> (raw)
In-Reply-To: <1560352745-24681-1-git-send-email-stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> (Stanley Chu's message of "Wed, 12 Jun 2019 23:19:05 +0800")
Stanley,
> UFS runtime suspend can be triggered after pm_runtime_enable()
> is invoked in ufshcd_pltfrm_init(). However if the first runtime
> suspend is triggered before binding ufs_hba structure to ufs
> device structure via platform_set_drvdata(), then UFS runtime
> suspend will be no longer triggered in the future because its
> dev->power.runtime_error was set in the first triggering and does
> not have any chance to be cleared.
Applied to 5.2/scsi-fixes. Thanks!
--
Martin K. Petersen Oracle Linux Engineering
WARNING: multiple messages have this Message-ID (diff)
From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Stanley Chu <stanley.chu@mediatek.com>
Cc: sthumma@codeaurora.org, linux-scsi@vger.kernel.org,
martin.petersen@oracle.com, marc.w.gonzalez@free.fr,
subhashj@codeaurora.org, chun-hung.wu@mediatek.com,
kuohong.wang@mediatek.com, peter.wang@mediatek.com,
evgreen@chromium.org, avri.altman@wdc.com,
linux-mediatek@lists.infradead.org, ygardi@codeaurora.org,
alim.akhtar@samsung.com, andy.teng@mediatek.com,
matthias.bgg@gmail.com, stable@vger.kernel.org,
pedrom.sousa@synopsys.com, linux-arm-kernel@lists.infradead.org,
beanhuo@micron.com
Subject: Re: [PATCH v2] scsi: ufs: Avoid runtime suspend possibly being blocked forever
Date: Tue, 18 Jun 2019 22:51:10 -0400 [thread overview]
Message-ID: <yq18stywan5.fsf@oracle.com> (raw)
In-Reply-To: <1560352745-24681-1-git-send-email-stanley.chu@mediatek.com> (Stanley Chu's message of "Wed, 12 Jun 2019 23:19:05 +0800")
Stanley,
> UFS runtime suspend can be triggered after pm_runtime_enable()
> is invoked in ufshcd_pltfrm_init(). However if the first runtime
> suspend is triggered before binding ufs_hba structure to ufs
> device structure via platform_set_drvdata(), then UFS runtime
> suspend will be no longer triggered in the future because its
> dev->power.runtime_error was set in the first triggering and does
> not have any chance to be cleared.
Applied to 5.2/scsi-fixes. Thanks!
--
Martin K. Petersen Oracle Linux Engineering
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Stanley Chu <stanley.chu@mediatek.com>
Cc: <linux-scsi@vger.kernel.org>, <martin.petersen@oracle.com>,
<avri.altman@wdc.com>, <alim.akhtar@samsung.com>,
<pedrom.sousa@synopsys.com>, <linux-mediatek@lists.infradead.org>,
<linux-arm-kernel@lists.infradead.org>, <matthias.bgg@gmail.com>,
<evgreen@chromium.org>, <beanhuo@micron.com>,
<marc.w.gonzalez@free.fr>, <ygardi@codeaurora.org>,
<subhashj@codeaurora.org>, <sthumma@codeaurora.org>,
<kuohong.wang@mediatek.com>, <peter.wang@mediatek.com>,
<chun-hung.wu@mediatek.com>, <andy.teng@mediatek.com>,
<stable@vger.kernel.org>
Subject: Re: [PATCH v2] scsi: ufs: Avoid runtime suspend possibly being blocked forever
Date: Tue, 18 Jun 2019 22:51:10 -0400 [thread overview]
Message-ID: <yq18stywan5.fsf@oracle.com> (raw)
In-Reply-To: <1560352745-24681-1-git-send-email-stanley.chu@mediatek.com> (Stanley Chu's message of "Wed, 12 Jun 2019 23:19:05 +0800")
Stanley,
> UFS runtime suspend can be triggered after pm_runtime_enable()
> is invoked in ufshcd_pltfrm_init(). However if the first runtime
> suspend is triggered before binding ufs_hba structure to ufs
> device structure via platform_set_drvdata(), then UFS runtime
> suspend will be no longer triggered in the future because its
> dev->power.runtime_error was set in the first triggering and does
> not have any chance to be cleared.
Applied to 5.2/scsi-fixes. Thanks!
--
Martin K. Petersen Oracle Linux Engineering
next prev parent reply other threads:[~2019-06-19 2:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-12 15:19 [PATCH v2] scsi: ufs: Avoid runtime suspend possibly being blocked forever Stanley Chu
2019-06-12 15:19 ` Stanley Chu
2019-06-12 15:19 ` Stanley Chu
2019-06-13 8:09 ` Avri Altman
2019-06-13 8:09 ` Avri Altman
2019-06-13 8:09 ` Avri Altman
[not found] ` <1560352745-24681-1-git-send-email-stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2019-06-15 22:16 ` Sasha Levin
2019-06-19 2:51 ` Martin K. Petersen [this message]
2019-06-19 2:51 ` Martin K. Petersen
2019-06-19 2:51 ` Martin K. Petersen
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