linux-kernel - Re: [PATCH] RFC: mmc: dw_mmc: Always go to STATE_DATA_BUSY from STATE_DATA

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Message-ID: <CAD=FV=Xz-Cp86u=w8m91AEMJgH-o6cLkz6_udVw_3bm7Tm0OiA@mail.gmail.com>
Date:	Tue, 18 Jun 2013 12:52:37 -0700
From:	Doug Anderson <dianders@...omium.org>
To:	Bing Zhao <bzhao@...vell.com>
Cc:	Seungwon Jeon <tgih.jun@...sung.com>,
	Jaehoon Chung <jh80.chung@...sung.com>,
	Chris Ball <cjb@...top.org>,
	Will Newton <will.newton@...il.com>,
	Ashok Nagarajan <asnagarajan@...omium.org>,
	Paul Stewart <pstew@...omium.org>,
	Olof Johansson <olof@...om.net>,
	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] RFC: mmc: dw_mmc: Always go to STATE_DATA_BUSY from STATE_DATA_ERROR

Bing,

On Tue, Jun 18, 2013 at 12:46 PM, Bing Zhao <bzhao@...vell.com> wrote:
> Hi Seungwon,
>
>> > I don't have the failing unit myself, so we'll have to get Bing to try
>> > the patches.  You are suggesting that we try applying both of your
>> > patches, right?
>> Did you test the patch?
>> I wonder that both are good for your side.
>
> I tested Doug's patch on my failing unit.
>
> Without this patch, mmc got hung_task and rebooted eventually.
> With this patch applied, mmc returns CRC error instead of hung_task, and the error is handled gracefully.

Have you tried one or both or Seungwon's fixes without mine?

-Doug
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