From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Stanley Chu <stanley.chu@mediatek.com>,
alim.akhtar@samsung.com, linux-scsi@vger.kernel.org,
bvanassche@acm.org, avri.altman@wdc.com, jejb@linux.ibm.com
Cc: "Martin K . Petersen" <martin.petersen@oracle.com>,
matthias.bgg@gmail.com, linux-arm-kernel@lists.infradead.org,
asutoshd@codeaurora.org, chaotian.jing@mediatek.com,
linux-kernel@vger.kernel.org, chun-hung.wu@mediatek.com,
cc.chou@mediatek.com, kuohong.wang@mediatek.com,
andy.teng@mediatek.com, peter.wang@mediatek.com,
linux-mediatek@lists.infradead.org, beanhuo@micron.com,
cang@codeaurora.org
Subject: Re: [PATCH v1] scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC
Date: Wed, 29 Jul 2020 00:10:39 -0400 [thread overview]
Message-ID: <159599579269.11289.6290519953354146093.b4-ty@oracle.com> (raw)
In-Reply-To: <20200724141627.20094-1-stanley.chu@mediatek.com>
On Fri, 24 Jul 2020 22:16:27 +0800, Stanley Chu wrote:
> In some platforms, VCC regulator may not be declared in device tree
> to keep itself "always-on". In this case, hba->vreg_info.vcc is NULL
> and shall not be operated during any flow.
>
> Prevent possible NULL hba->vreg_info.vcc access in LPM mode by checking
> if it is valid first.
Applied to 5.9/scsi-queue, thanks!
[1/1] scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC
https://git.kernel.org/mkp/scsi/c/0255b1e3d849
--
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>,
alim.akhtar@samsung.com, linux-scsi@vger.kernel.org,
bvanassche@acm.org, avri.altman@wdc.com, jejb@linux.ibm.com
Cc: "Martin K . Petersen" <martin.petersen@oracle.com>,
andy.teng@mediatek.com, cc.chou@mediatek.com,
chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com,
linux-kernel@vger.kernel.org, cang@codeaurora.org,
linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, matthias.bgg@gmail.com,
beanhuo@micron.com, peter.wang@mediatek.com,
chaotian.jing@mediatek.com, asutoshd@codeaurora.org
Subject: Re: [PATCH v1] scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC
Date: Wed, 29 Jul 2020 00:10:39 -0400 [thread overview]
Message-ID: <159599579269.11289.6290519953354146093.b4-ty@oracle.com> (raw)
In-Reply-To: <20200724141627.20094-1-stanley.chu@mediatek.com>
On Fri, 24 Jul 2020 22:16:27 +0800, Stanley Chu wrote:
> In some platforms, VCC regulator may not be declared in device tree
> to keep itself "always-on". In this case, hba->vreg_info.vcc is NULL
> and shall not be operated during any flow.
>
> Prevent possible NULL hba->vreg_info.vcc access in LPM mode by checking
> if it is valid first.
Applied to 5.9/scsi-queue, thanks!
[1/1] scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC
https://git.kernel.org/mkp/scsi/c/0255b1e3d849
--
Martin K. Petersen Oracle Linux Engineering
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
WARNING: multiple messages have this Message-ID (diff)
From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Stanley Chu <stanley.chu@mediatek.com>,
alim.akhtar@samsung.com, linux-scsi@vger.kernel.org,
bvanassche@acm.org, avri.altman@wdc.com, jejb@linux.ibm.com
Cc: "Martin K . Petersen" <martin.petersen@oracle.com>,
andy.teng@mediatek.com, cc.chou@mediatek.com,
chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com,
linux-kernel@vger.kernel.org, cang@codeaurora.org,
linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, matthias.bgg@gmail.com,
beanhuo@micron.com, peter.wang@mediatek.com,
chaotian.jing@mediatek.com, asutoshd@codeaurora.org
Subject: Re: [PATCH v1] scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC
Date: Wed, 29 Jul 2020 00:10:39 -0400 [thread overview]
Message-ID: <159599579269.11289.6290519953354146093.b4-ty@oracle.com> (raw)
In-Reply-To: <20200724141627.20094-1-stanley.chu@mediatek.com>
On Fri, 24 Jul 2020 22:16:27 +0800, Stanley Chu wrote:
> In some platforms, VCC regulator may not be declared in device tree
> to keep itself "always-on". In this case, hba->vreg_info.vcc is NULL
> and shall not be operated during any flow.
>
> Prevent possible NULL hba->vreg_info.vcc access in LPM mode by checking
> if it is valid first.
Applied to 5.9/scsi-queue, thanks!
[1/1] scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC
https://git.kernel.org/mkp/scsi/c/0255b1e3d849
--
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
next prev parent reply other threads:[~2020-07-29 4:11 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-24 14:16 [PATCH v1] scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC Stanley Chu
2020-07-24 14:16 ` Stanley Chu
2020-07-24 14:16 ` Stanley Chu
2020-07-27 10:56 ` Avri Altman
2020-07-27 10:56 ` Avri Altman
2020-07-27 10:56 ` Avri Altman
2020-07-29 4:10 ` Martin K. Petersen [this message]
2020-07-29 4:10 ` Martin K. Petersen
2020-07-29 4:10 ` Martin K. Petersen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=159599579269.11289.6290519953354146093.b4-ty@oracle.com \
--to=martin.petersen@oracle.com \
--cc=alim.akhtar@samsung.com \
--cc=andy.teng@mediatek.com \
--cc=asutoshd@codeaurora.org \
--cc=avri.altman@wdc.com \
--cc=beanhuo@micron.com \
--cc=bvanassche@acm.org \
--cc=cang@codeaurora.org \
--cc=cc.chou@mediatek.com \
--cc=chaotian.jing@mediatek.com \
--cc=chun-hung.wu@mediatek.com \
--cc=jejb@linux.ibm.com \
--cc=kuohong.wang@mediatek.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=linux-scsi@vger.kernel.org \
--cc=matthias.bgg@gmail.com \
--cc=peter.wang@mediatek.com \
--cc=stanley.chu@mediatek.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.