linux-kernel - Re: linux-next: Tree for May 1 (media/usb/stk1160)

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Message-ID: <518179BD.3010407@infradead.org>
Date:	Wed, 01 May 2013 13:23:25 -0700
From:	Randy Dunlap <rdunlap@...radead.org>
To:	David Rientjes <rientjes@...gle.com>
CC:	"Yann E. MORIN" <yann.morin.1998@...e.fr>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-media <linux-media@...r.kernel.org>,
	linux-kbuild@...r.kernel.org
Subject: Re: linux-next: Tree for May 1 (media/usb/stk1160)

On 05/01/13 12:58, David Rientjes wrote:
> On Wed, 1 May 2013, Yann E. MORIN wrote:
> 
>>> When CONFIG_SND=m and CONFIG_SND_AC97_CODEC=m and
>>> CONFIG_VIDEO_STK1160=y
>>> CONFIG_VIDEO_STK1160_AC97=y
>>>
>>> drivers/built-in.o: In function `stk1160_ac97_register':
>>> (.text+0x122706): undefined reference to `snd_card_create'
>>> drivers/built-in.o: In function `stk1160_ac97_register':
>>> (.text+0x1227b2): undefined reference to `snd_ac97_bus'
>>> drivers/built-in.o: In function `stk1160_ac97_register':
>>> (.text+0x1227cd): undefined reference to `snd_card_free'
>>> drivers/built-in.o: In function `stk1160_ac97_register':
>>> (.text+0x12281b): undefined reference to `snd_ac97_mixer'
>>> drivers/built-in.o: In function `stk1160_ac97_register':
>>> (.text+0x122832): undefined reference to `snd_card_register'
>>> drivers/built-in.o: In function `stk1160_ac97_unregister':
>>> (.text+0x12285e): undefined reference to `snd_card_free'
>>>
>>>
>>> This kconfig fragment:
>>> config VIDEO_STK1160_AC97
>>> 	bool "STK1160 AC97 codec support"
>>> 	depends on VIDEO_STK1160 && SND
> 
> This doesn't depend on SND, it depends on SND=y.
> --


Maybe this option *should* depend on SND=y, but that's not what the
kconfig syntax says.  The kconfig language does not care if the variable is
a bool or a tristate when evaluating a depends expression AFAICT (but I am
only reading Documentation/kbuild/kconfig-language.txt, not the source code).


-- 
~Randy
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