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From: Mauro Carvalho Chehab <mchehab@infradead.org>
To: Trent Piepho <xyzzy@speakeasy.org>
Cc: Adrian Bunk <bunk@kernel.org>, Hans Verkuil <hverkuil@xs4all.nl>,
	v4l-dvb-maintainer@linuxtv.org,
	Marcin Slusarz <marcin.slusarz@gmail.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [v4l-dvb-maintainer] 2.6.25 regression: VIDEO_DEV=y/m,	I2C=n compile error
Date: Mon, 28 Jan 2008 09:49:12 -0200	[thread overview]
Message-ID: <20080128094912.1848eacd@gaivota> (raw)
In-Reply-To: <Pine.LNX.4.58.0801280053010.15635@shell4.speakeasy.net>

> Maybe the kernel headers should provide a couple macros for testing
> configs, since people get it wrong over and over again?
> 
> #define CONFIG_ON(x) (defined(CONFIG_##x) || defined(CONFIG_##x##_MODULE))
> #define CONFIG_AVAIABLE(x) (defined(CONFIG_##x) || (defined(MODULE) && defined(CONFIG_##x##_MODULE)))

Seems a good idea to me.
> 
> Not sure what to do about VIDEO_DEV=y, I2C=m.  It should be possible except
> for this function.

I don't see much sense on allowing v4l2-common being in-kernel, while having
I2C as module. Also, creating a separate module for just a single function
seems to be overkill.

IMO, in this specific case, v4l2-common should also be a module. Not sure,
however,the better syntax on Kconfig. Once, someone suggested a very weird
syntax, like:

	depends on I2C if I2C


Cheers,
Mauro

  reply	other threads:[~2008-01-28 11:49 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-27 18:52 2.6.25 regression: VIDEO_DEV=y/m, I2C=n compile error Adrian Bunk
2008-01-28  0:33 ` Mauro Carvalho Chehab
2008-01-28  8:40   ` Adrian Bunk
2008-01-28  9:05     ` [v4l-dvb-maintainer] " Trent Piepho
2008-01-28 11:49       ` Mauro Carvalho Chehab [this message]
2008-01-28 12:12         ` Adrian Bunk
2008-01-28 12:22           ` Mauro Carvalho Chehab
2008-01-28 12:25             ` Mauro Carvalho Chehab
2008-01-29 16:38           ` Mauro Carvalho Chehab
2008-01-28 12:17       ` Jan Engelhardt
2008-01-28 12:25         ` Adrian Bunk
2008-02-01 19:24         ` Trent Piepho
2008-01-29 18:42       ` Mauro Carvalho Chehab

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