linux-kernel - Re: [PATCH] include/asm-generic/io.h: add dummy fuctions to support 'COMPILE

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Date:	Fri, 05 Jul 2013 08:10:34 +0800
From:	Chen Gang <gang.chen@...anux.com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
CC:	Greg KH <gregkh@...uxfoundation.org>,
	Chen Gang F T <chen.gang.flying.transformer@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Arnd Bergmann <arnd@...db.de>,
	Richard Weinberger <richard@....at>,
	Jeff Dike <jdike@...toit.com>,
	David Sharp <dhsharp@...gle.com>,
	"sfr@...b.auug.org.au" <sfr@...b.auug.org.au>,
	Ingo Molnar <mingo@...nel.org>,
	uml-devel <user-mode-linux-devel@...ts.sourceforge.net>,
	uml-user <user-mode-linux-user@...ts.sourceforge.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux-Arch <linux-arch@...r.kernel.org>,
	Mark Brown <broonie@...nel.org>,
	David Miller <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Kosina <trivial@...nel.org>, Jiri Slaby <jslaby@...e.cz>
Subject: Re: [PATCH] include/asm-generic/io.h: add dummy fuctions to support
 'COMPILE_TEST' in 'asm-generic'.

On 07/04/2013 04:09 PM, Geert Uytterhoeven wrote:
> On Thu, Jul 4, 2013 at 8:12 AM, Greg KH <gregkh@...uxfoundation.org> wrote:
>> > On Thu, Jul 04, 2013 at 12:50:31PM +0800, Chen Gang wrote:
>>> >> On 07/04/2013 12:08 PM, Greg KH wrote:
>>>>>> >> >> > config COMPILE_TEST
>>>>>> >> >> >        bool "Compile also drivers which will not load"
>>>>>> >> >> >        default n
>>>> >> > This has _nothing_ to do with asm-generic, sorry.  Please don't confuse
>>>> >> > the issue.
>>> >>
>>> >> But when I choose allmodconfig, then "COMPILE_TEST=y". this may allow a
>>> >> module to compile under the architectures which no related HW support.
>>> >>
>>> >> When cause compiling issue (HW not support), it is not module's issue,
>>> >> we can not 'fix' module by force, and it is not architecture's issue,
>>> >> either.
>>> >>
>>> >> So we have to look for who has duty for this issue. At least now, it
>>> >> seems only 'asm-generic' can be qualified to play this unlucky role.
>> >
>> > You seem to not understand what asm-generic is, or does, or I still do
>> > not understand what you are proposing.
>> >
>> > Please send a patch showing what you are trying to do here, so that we
>> > can properly understand.
> The patch is in the first email of this thread:
> https://lkml.org/lkml/2013/7/1/641

Yeah, check history directly may be more precise.


Thanks.
-- 
Chen Gang
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