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From: James Hogan <james.hogan@imgtec.com>
To: guanxuetao@mprc.pku.edu.cn
Cc: Arnd Bergmann <arnd@arndb.de>, Jonas Bonn <jonas@southpole.se>,
	linux-arch@vger.kernel.org, linux@openrisc.net,
	linux-kernel@vger.kernel.org,
	uclinux-dist-devel@blackfin.uclinux.org,
	linux-xtensa@linux-xtensa.org, Chris Zankel <chris@zankel.net>,
	Max Filippov <jcmvbkbc@gmail.com>,
	Mike Frysinger <vapier@gentoo.org>,
	Chen Liqin <liqin.chen@sunplusct.com>,
	Lennox Wu <lennox.wu@gmail.com>,
	Guan Xuetao <gxt@mprc.pku.edu.cn>
Subject: Re: [PATCH] asm-generic/io.h: remove asm/cacheflush.h include
Date: Mon, 29 Oct 2012 09:28:09 +0000	[thread overview]
Message-ID: <508E4C29.4030308@imgtec.com> (raw)
In-Reply-To: <57835.162.105.203.8.1351474122.squirrel@mprc.pku.edu.cn>

On 29/10/12 01:28, guanxuetao@mprc.pku.edu.cn wrote:
>> Including <asm/cacheflush.h> from <asm-generic/io.h> prevents
>> cacheflush.h being able to use I/O functions like readl and writel due
>> to circular include dependencies. It doesn't appear as if anything from
>> cacheflush.h is actually used by the generic io.h, so remove the
>> include.
>>
>> I've compile tested a defconfig compilation of blackfin, openrisc (which
>> needed <asm/pgtable.h> including from it's <asm/io.h> to get the PAGE_*
>> definitions), and xtensa.
>>
>> Other architectures which use asm-generic/io.h are score and unicore32,
>> and looking at their io.h I don't see any obvious problems.
>>
>> Signed-off-by: James Hogan <james.hogan@imgtec.com>
>> Cc: Arnd Bergmann <arnd@arndb.de>
>> Cc: Jonas Bonn <jonas@southpole.se>
>> Cc: Chris Zankel <chris@zankel.net>
>> Cc: Max Filippov <jcmvbkbc@gmail.com>
>> Cc: Mike Frysinger <vapier@gentoo.org>
>> Cc: Chen Liqin <liqin.chen@sunplusct.com>
>> Cc: Lennox Wu <lennox.wu@gmail.com>
>> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
> 
> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>

Thanks Guan

Cheers
James

      parent reply	other threads:[~2012-10-29  9:28 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-23  9:21 [PATCH] asm-generic/io.h: remove asm/cacheflush.h include James Hogan
2012-10-23  9:21 ` James Hogan
2012-10-25 13:40 ` Jonas Bonn
2012-10-25 13:40   ` Jonas Bonn
2012-10-25 14:07   ` Arnd Bergmann
2012-10-25 14:07     ` Arnd Bergmann
2012-10-25 14:07   ` James Hogan
2012-10-25 14:07     ` James Hogan
2012-10-25 14:10     ` Arnd Bergmann
2012-10-25 14:10       ` Arnd Bergmann
2012-10-25 21:19 ` Max Filippov
2012-10-29  1:28 ` guanxuetao
2012-10-29  1:28   ` guanxuetao
2012-10-29  9:28   ` James Hogan [this message]

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