On Tue, 19 Aug 2008 17:05:17 -0700
Randy Dunlap <randy.dunlap@oracle.com> wrote:

quoted text
> drivers/mfd/ucb1400 is a sound (AC97) driver, so it should depend
> on AC97_BUS, like in the patch below.  However, with that patch in
> place, oldconfig goes belly up on me:
> 
> 
> linux-next-20080819> make ARCH=x86_64  O=X64  V=1 oldconfig
> make -C /local/linsrc/linux-next-20080819/X64 \
> 	KBUILD_SRC=/local/linsrc/linux-next-20080819 \
> 	KBUILD_EXTMOD="" -f /local/linsrc/linux-next-20080819/Makefile \
> 	oldconfig
> make -f /local/linsrc/linux-next-20080819/scripts/Makefile.build obj=scripts/basic
> /bin/sh /local/linsrc/linux-next-20080819/scripts/mkmakefile \
> 	    /local/linsrc/linux-next-20080819 /local/linsrc/linux-next-20080819/X64 2 6
>   GEN     /local/linsrc/linux-next-20080819/X64/Makefile
> mkdir -p include/linux include/config
> make -f /local/linsrc/linux-next-20080819/scripts/Makefile.build obj=scripts/kconfig oldconfig
> scripts/kconfig/conf -o arch/x86/Kconfig
> make[2]: *** [oldconfig] Segmentation fault (core dumped)
> make[1]: *** [oldconfig] Error 2
> make: *** [sub-make] Error 2
> 
> 
> 
> ---
> From: Randy Dunlap <randy.dunlap@oracle.com>
> 
> mfd/ucb1400 sound driver uses/depends on AC97_BUS:
> 
> ERROR: "ac97_bus_type" [drivers/mfd/ucb1400_core.ko] undefined!
> 
> 
> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
> cc: Samuel Ortiz <sameo@openedhand.com>
> 
> ---
>  drivers/mfd/Kconfig |    1 +
>  1 file changed, 1 insertion(+)
> 
> --- linux-next-20080819.orig/drivers/mfd/Kconfig
> +++ linux-next-20080819/drivers/mfd/Kconfig
> @@ -52,6 +52,7 @@ config HTC_PASIC3
>  
>  config UCB1400_CORE
>  	tristate "Philips UCB1400 Core driver"
> +	depends on AC97_BUS
>  	help
>  	  This enables support for the Philips UCB1400 core functions.
>  	  The UCB1400 is an AC97 audio codec.

And this:

From: Andrew Morton <akpm@linux-foundation.org>

ia64 allmodconfig:

In file included from include/linux/ucb1400.h:27,
                 from drivers/mfd/ucb1400_core.c:24:
include/asm-generic/gpio.h: In function `gpio_get_value_cansleep':
include/asm-generic/gpio.h:147: error: implicit declaration of function `gpio_get_value'
include/asm-generic/gpio.h: In function `gpio_set_value_cansleep':
include/asm-generic/gpio.h:153: error: implicit declaration of function `gpio_set_value'
drivers/mfd/ucb1400_core.c: At top level:

Cc: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/mfd/Kconfig |    1 +
 1 file changed, 1 insertion(+)

diff -puN drivers/mfd/Kconfig~drivers-mfd-ucb1400_corec-needs-gpio drivers/mfd/Kconfig
--- a/drivers/mfd/Kconfig~drivers-mfd-ucb1400_corec-needs-gpio
+++ a/drivers/mfd/Kconfig
@@ -53,6 +53,7 @@ config HTC_PASIC3
 config UCB1400_CORE
 	tristate "Philips UCB1400 Core driver"
 	depends on AC97_BUS
+	depends on GPIOLIB
 	help
 	  This enables support for the Philips UCB1400 core functions.
 	  The UCB1400 is an AC97 audio codec.
_

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