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Date:	Mon, 14 Jul 2014 17:22:39 +0800
From:	Chen Gang <gang.chen.5i5j@...il.com>
To:	Richard Weinberger <richard@....at>
Cc:	Lars-Peter Clausen <lars@...afoo.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	dmitry.torokhov@...il.com, linux-iio@...r.kernel.org,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>, teg@...m.no,
	Thierry Reding <thierry.reding@...il.com>,
	Lennox Wu <lennox.wu@...il.com>,
	Chen Gang <gang.chen.5i5j@...il.com>,
	Marek Vasut <marex@...x.de>,
	Liqin Chen <liqin.linux@...il.com>, msalter@...hat.com,
	linux-pwm@...r.kernel.org, devel@...verdev.osuosl.org,
	linux-watchdog@...r.kernel.org, linux-input@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	knaack.h@....de, Martin Schwidefsky <schwidefsky@...ibm.com>,
	Mischa.Jonker@...opsys.com, jic23@...nel.org
Subject: Re: [PATCH] drivers: Let several drivers depends on HAS_IOMEM for 'devm_ioremap_resource'


在 2014年7月14日,下午4:57,Richard Weinberger <richard@....at> 写道:

> Am 14.07.2014 10:48, schrieb Lars-Peter Clausen:
>> On 07/14/2014 10:31 AM, Richard Weinberger wrote:
>>> Am 13.07.2014 22:17, schrieb Greg Kroah-Hartman:
>>>> On Sun, Jul 13, 2014 at 09:33:38PM +0200, Richard Weinberger wrote:
>>>>> Maybe we could add COMPILE_TEST to the version string too?
>>>>> Just to detect such kernels fast in user bug reports...
>>>> 
>>>> What kind of bug report are you going to get?
>>> 
>>> User manages to enable CONFIG_FOO by selecting COMPILE_TEST and
>>> complains that it does not work. :)
>> 
>> These drivers are typically drivers for some SoC peripheral and the device will simply physically not exist on a platform that does not provide HAS_IOMEM. This is not really any
>> different from making the driver selectable via COMPILE_TEST for any other platform. To hit the issue you'd have to instantiate a device driver instance for a device that
>> physically does not exist. This will always result in a failure.
> 
> Okay, you have convinced me. :)
> 

OK, thank all of you, and I shall send the related patch for it. 

I will try to finish it within this week.

Thanks.
—
Chen Gang
Open, share, and attitude like air, water, and life which God blessed.--
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