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

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Message-ID: <51D617E9.8080907@gmail.com>
Date:	Fri, 05 Jul 2013 08:48:41 +0800
From:	Chen Gang F T <chen.gang.flying.transformer@...il.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
CC:	Arnd Bergmann <arnd@...db.de>, Chen Gang <gang.chen@...anux.com>,
	Greg KH <gregkh@...uxfoundation.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Richard Weinberger <richard@....at>,
	Jeff Dike <jdike@...toit.com>,
	David Sharp <dhsharp@...gle.com>,
	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 07/05/2013 08:14 AM, Stephen Rothwell wrote:
> On Fri, 05 Jul 2013 08:03:31 +0800 Chen Gang F T <chen.gang.flying.transformer@...il.com> wrote:
>> >
>> > When a module select "COMPILE_TEST=y" (e.g with allmodconfig), it has
>> > right to compile under the architecture which no related HW support.
>> > 
>> > If it can not pass compiling, at least it is not the module's issue,
>> > neither the architecture's issue.
>> > 
>> > We have to look for who has duty on it. At least now, it seems only
>> > 'asm-generic' can be qualified to play this unlucky role.
> You keep saying this, but others have told you that this is not the
> problem.
> 

In real world, it is not the problem.

But for 'mad users' (e.g. allmodconfig, randconfig, and me too), they
have not provided enough reason for it (prove that is not a problem for
'mad users').


>> > Could you provide your suggestions or completions for this issue ?
> If something doesn't build for a particular config, then either it needs
> to be fixed or excluded from building in that particular config.

I agree with you, if get rid of 'COMPILE_TEST'.

Thanks.
-- 
Chen Gang
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