linux-kernel - Re: [PATCH] gpio: reorganize drivers

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Message-ID: <BANLkTinOPVo9TL5sgf9qVAjaw=83N2kYKQ@mail.gmail.com>
Date:	Tue, 7 Jun 2011 00:39:14 -0400
From:	Mike Frysinger <vapier.adi@...il.com>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	Roland Dreier <roland@...estorage.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] gpio: reorganize drivers

On Mon, Jun 6, 2011 at 13:37, Grant Likely wrote:
> On Mon, Jun 6, 2011 at 11:33 AM, Grant Likely wrote:
>> On Mon, Jun 6, 2011 at 11:27 AM, Roland Dreier wrote:
>>> On Mon, Jun 6, 2011 at 12:06 AM, Grant Likely wrote:
>>>> Sort the gpio makefile and enforce the naming convention gpio-*.c for
>>>> gpio drivers.
>>>
>>> OK, bikeshed colors here, but... what is the benefit of
>>> 'drivers/gpio/gpio-xxx.c' vs
>>> just 'drivers/gpio/xxx.c'?  Seems like one 'gpio' should be enough for anyone...
>>
>> lsmod
>
> Specifically, module names don't give any clues about which directory
> they were loaded out of, so it is useful to have the module name
> reflect exactly what the module is for.  Second, a lot of these
> gpio/spi/i2c cores end up being stuffed into an integrated chipset
> where they all pretty much share the same name, but the drivers are
> for different functional blocks.  ie. gpio-omap.o, spi-omap.o,
> i2c-omap.o

well, more important is the opposite direction ... if we have
gpio/omap.c and i2c/omap.c and spi/omap.c, which "omap.ko" is
`modprobe` going to load ?

and if you `rmmod omap`, which one is going to be unloaded ?

i wonder if the module core even allows for that ...
-mike
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