linux-kernel - Re: [PATCH] asm-generic/io.h: Implement read[bwlq]

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Message-ID: <540EFC99.3040100@linaro.org>
Date:	Tue, 09 Sep 2014 14:11:53 +0100
From:	Daniel Thompson <daniel.thompson@...aro.org>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
CC:	Arnd Bergmann <arnd@...db.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"patches@...aro.org" <patches@...aro.org>,
	linaro-kernel <linaro-kernel@...ts.linaro.org>,
	Will Deacon <will.deacon@....com>,
	Linux-Arch <linux-arch@...r.kernel.org>
Subject: Re: [PATCH] asm-generic/io.h: Implement read[bwlq]_relaxed()

On 09/09/14 13:31, Geert Uytterhoeven wrote:
> Hi Daniel,
> 
> On Tue, Sep 9, 2014 at 2:12 PM, Daniel Thompson
> <daniel.thompson@...aro.org> wrote:
>> Currently the read[bwlq]_relaxed() family are implemented on every
>> architecture except blackfin, m68k[1], metag, openrisc, s390[2] and
>> score. Increasingly drivers are being optimized to exploit relaxed
>> reads putting these architectures at risk of compilation failures for
>> shared drivers.
>>
>> This patch addresses this by providing implementations of
>> read[bwlq]_relaxed() that are identical to the equivalent read[bwlq]().
>> All the above architectures include asm-generic/io.h .
> 
> m68k does not include asm-generic/io.h.

Looking back through my command history I can't figure out how I made
this mistake.

I will change the comment.

For the record I have also just double checked blackfin, metag,
openrisc, s390 and score and these really do use asm-generic/io.h .


Daniel.

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