Re: [PATCH v1] scsi: ufs: Use explicit access size in ufshcd_dump_regs

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To: Marc Gonzalez <marc.w.gonzalez@xxxxxxx>
Subject: Re: [PATCH v1] scsi: ufs: Use explicit access size in ufshcd_dump_regs
From: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Date: Tue, 22 Jan 2019 21:13:33 -0500
Cc: Vinayak Holikatti <vinholikatti@xxxxxxxxx>, Joao Pinto <jpinto@xxxxxxxxxxxx>, Tomas Winkler <tomas.winkler@xxxxxxxxx>, Avri Altman <avri.altman@xxxxxxx>, "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>, MSM <linux-arm-msm@xxxxxxxxxxxxxxx>, Linux ARM <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, SCSI <linux-scsi@xxxxxxxxxxxxxxx>
In-reply-to: <3bf7ea8e-4cf2-1f9b-7f46-15609dfcad19@free.fr> (Marc Gonzalez's message of "Tue, 11 Dec 2018 15:18:18 +0100")
Organization: Oracle Corporation
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)

Marc,

> memcpy_fromio() doesn't provide any control over access size.
> For example, on arm64, it is implemented using readb and readq.
> This may trigger a synchronous external abort:

Applied to 5.0/scsi-fixes, thanks.

-- 
Martin K. Petersen	Oracle Linux Engineering

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References:
- [PATCH v1] scsi: ufs: Use explicit access size in ufshcd_dump_regs
  - From: Marc Gonzalez

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