linux-kernel - Re: [PATCH 31/73] module: relocate module

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Date:	Tue, 21 Jan 2014 16:43:19 -0800
From:	Randy Dunlap <rdunlap@...radead.org>
To:	Rusty Russell <rusty@...tcorp.com.au>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	linux-kernel@...r.kernel.org
CC:	linux-arch@...r.kernel.org
Subject: Re: [PATCH 31/73] module: relocate module_init from init.h to module.h

On 01/21/2014 04:16 PM, Rusty Russell wrote:
> Paul Gortmaker <paul.gortmaker@...driver.com> writes:
>> Modular users will always be users of init functionality, but
>> users of init functionality are not necessarily always modules.
>>
>> Hence any functionality like module_init and module_exit would
>> be more at home in the module.h file.  And module.h should
>> explicitly include init.h to make the dependency clear.
>>
>> We've already done all the legwork needed to ensure that this
>> move does not cause any build regressions due to implicit
>> header file include assumptions about where module_init lives.
>>
>> Cc: Rusty Russell <rusty@...tcorp.com.au>
>> Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
> 
> Acked-by: Rusty Russell <rusty@...tcorp.com.au>
> 
> Want to delete the extraneous semicolons, for bonus points? :)
> 
>> +#define module_init(x)	__initcall(x);
> ...
>> +#define module_exit(x)	__exitcall(x);


There are still around 380 modules that use "module_init(x)" without
a trailing semi-colon.  That would make lots of build errors/warnings,
I think.  There was also a 2012 patch to fix those and change the
module_init() macro.

What happened there?

ISTR (maybe incorrectly) that Linus once argued for leaving the trailing
semi-colon there (perhaps 8 years ago).  who knows?


-- 
~Randy
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