linux-kernel - Re: [RFC] drivercore: Add helper macro for platform

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Message-ID: <CAMuHMdWP+a0jXVBKzJ_J-Rtxdv=CFacDPz91fu=ThwSU_5dOeg@mail.gmail.com>
Date:	Sun, 4 Dec 2011 09:39:05 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Greg KH <greg@...ah.com>, Grant Likely <grant.likely@...retlab.ca>
Cc:	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC] drivercore: Add helper macro for platform_driver boilerplate

On Wed, Oct 5, 2011 at 08:56, Greg KH <greg@...ah.com> wrote:
> On Tue, Oct 04, 2011 at 05:26:55PM -0600, Grant Likely wrote:
>> For simple modules that contain a single platform_driver without any
>> additional setup code then ends up being a block of duplicated
>> boilerplate.  This patch adds a new macro, module_platform_driver(),
>> which replaces the module_init()/module_exit() registrations with
>> template functions.
>>
>> This patch also converts all the relevant spi drivers to use the new
>> macro.  There are a lot of drivers in the tree that are using this
>> pattern and could be converted.
>>
>> It also fixes up some incorrect section annotations where I found
>> them.
>>
>> Signed-off-by: Grant Likely <grant.likely@...retlab.ca>
>> ---
>>
>> I think this is useful, and I like the diffstat that it produces.
>> What does everyone else think of this approach?  I can do versions for
>> i2c_drivers and spi_drivers too.
>>
>> This is *not* tested very much.  I'm circulating mostly for review for
>> now.
>
> The idea looks sane to me, I like the diffstat it ends up creating, nice
> job.

I guess the macro can be extended (or wrapped around another one) to include
the bus type, so it applies to all bus types?

It's a pity some use <bus>_register_driver(), while others use
<bus>_driver_register(),
so this needs some refactoring for unification.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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