From: Peter Wang <peter.wang@mediatek.com>
To: Bart Van Assche <bvanassche@acm.org>, <stanley.chu@mediatek.com>,
<linux-scsi@vger.kernel.org>, <martin.petersen@oracle.com>,
<avri.altman@wdc.com>, <alim.akhtar@samsung.com>,
<jejb@linux.ibm.com>
Cc: <wsd_upstream@mediatek.com>, <linux-mediatek@lists.infradead.org>,
<chun-hung.wu@mediatek.com>, <alice.chao@mediatek.com>,
<cc.chou@mediatek.com>, <chaotian.jing@mediatek.com>,
<jiajie.hao@mediatek.com>, <powen.kao@mediatek.com>,
<jonathan.hsu@mediatek.com>, <qilin.tan@mediatek.com>,
<lin.gui@mediatek.com>
Subject: Re: [PATCH v1] scsi: ufs: ufs-mediatek: Change dbg select by check hw version
Date: Wed, 1 Sep 2021 13:45:57 +0800 [thread overview]
Message-ID: <7ab5239c6d8c7fc2d883bec6ccc6268021afba76.camel@mediatek.com> (raw)
In-Reply-To: <e3f14336-2cc6-3985-fd52-ead795737417@acm.org>
Hi Bart,
Really appreciate your reminder.
We will upload new patch to bypss KCSAN.
Thank you very much.
Peter
On Tue, 2021-08-31 at 19:55 -0700, Bart Van Assche wrote:
> On 8/31/21 19:29, Peter Wang wrote:
> > REG_UFS_MTK_HW_VER is a read only mediatek dedicated register.
> > So, hw_ver will get a const value for mediatek to decide how to use
> > debug select. It only need read once, no need multi-threads
> > protected.
>
> Hi Peter,
>
> The above can be concluded easily by a human but not by software. If
> this code is analyzed with KCSAN then KCSAN will probably complain.
> See
> also Documentation/dev-tools/kcsan.rst.
>
> Anyway, I'm fine with this patch.
>
> Thanks,
>
> Bart.
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prev parent reply other threads:[~2021-09-01 5:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-30 12:11 [PATCH v1] scsi: ufs: ufs-mediatek: Change dbg select by check hw version peter.wang
2021-08-31 2:47 ` Bart Van Assche
2021-09-01 2:29 ` Peter Wang
2021-09-01 2:55 ` Bart Van Assche
2021-09-01 5:45 ` Peter Wang [this message]
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