linux-kernel - Re: [PATCH 2/3] clocksource: add DB8500 PRCMU Timer support

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Message-ID: <BANLkTimAOWNJNGJwJkCkwwDJ2BR__NCV+A@mail.gmail.com>
Date:	Wed, 1 Jun 2011 10:37:16 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Lee Jones <lee.jones@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Mattias Wallin <mattias.wallin@...ricsson.com>
Subject: Re: [PATCH 2/3] clocksource: add DB8500 PRCMU Timer support

2011/6/1 Russell King - ARM Linux <linux@....linux.org.uk>:
> On Tue, May 31, 2011 at 11:18:25PM +0200, Linus Walleij wrote:
>> Keeping it under include/linux is probably wise since we want drivers
>> OUT of the ARM tree, but I don't know if there is much consensus on that?
>
> Header files private to a driver should be alongside the driver.  Look
> at drivers/net or drivers/scsi for plenty of examples.
>
> Just because its a header file does not mean it must be in some directory
> with 'include' in its path.  The only reason to put it in include/linux
> is if it contains stuff which needs to be shared outside of the driver
> (eg, with arches).

I agree. Right now I have a creepy feeling that many drivers are just
putting headers in <mach/foo.h> out of habit, when plain "foo.h" in
working dir or <linux/subsystem/foo.h> is what is really apropriate.

Yours,
Linus Walleij
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