linux-kernel - Re: Bug report: MIPS CI20/jz4740-mmc DMA and PREEMPT

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Message-ID: <20181017195050.GA20347@darkstar.musicnaut.iki.fi>
Date:   Wed, 17 Oct 2018 22:50:50 +0300
From:   Aaro Koskinen <aaro.koskinen@....fi>
To:     Mathieu Malaterre <malat@...ian.org>
Cc:     Linux-MIPS <linux-mips@...ux-mips.org>, linux-mmc@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Ezequiel Garcia <ezequiel@...labora.co.uk>
Subject: Re: Bug report: MIPS CI20/jz4740-mmc DMA and PREEMPT_NONE

Hi,

On Wed, Oct 17, 2018 at 03:38:07PM +0200, Mathieu Malaterre wrote:
> Since CONFIG_PREEMPT has been 'y' since at least commit 0752f92934292
> could you confirm that the original mmc driver (kernel from imgtech
> people) did work ok with PREEMPT_NONE (sorry I did not do my homework)
> ?

Sorry, cannot confirm or test that. I have only used the mainline kernel
on this board, since v4.5 or so with my own custom config which has
been PREEMPT_NONE until now.

A.