linux-kernel - Re: 2.6.24-rc6-mm1 (build problem: gpio/W1)

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Message-ID: <20080105161657.GQ15861@sci.fi>
Date:	Sat, 5 Jan 2008 18:16:57 +0200
From:	Ville Syrjälä <syrjala@....fi>
To:	Evgeniy Polyakov <johnpol@....mipt.ru>
Cc:	Randy Dunlap <randy.dunlap@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, david-b@...bell.net
Subject: Re: 2.6.24-rc6-mm1 (build problem: gpio/W1)

On Sat, Jan 05, 2008 at 06:29:04PM +0300, Evgeniy Polyakov wrote:
> Hi Randy.
> 
> Sorry for long delay.
> 
> On Mon, Dec 31, 2007 at 10:19:20AM -0800, Randy Dunlap (randy.dunlap@...cle.com) wrote:
> >   CC      drivers/w1/masters/w1-gpio.o
> > In file included from /local/linsrc/linux-2.6.24-rc6-mm1/drivers/w1/masters/w1-gpio.c:19:
> > include2/asm/gpio.h:4:18: error: gpio.h: No such file or directory
> > /local/linsrc/linux-2.6.24-rc6-mm1/drivers/w1/masters/w1-gpio.c: In function 'w1_gpio_write_bit_dir':
> > /local/linsrc/linux-2.6.24-rc6-mm1/drivers/w1/masters/w1-gpio.c:26: error: implicit declaration of function 'gpio_direction_input'
> > /local/linsrc/linux-2.6.24-rc6-mm1/drivers/w1/masters/w1-gpio.c:28: error: implicit declaration of function 'gpio_direction_output'
> 
> I believe w1-gpio it has to depend on generic gpio, Ville can you
> confirm that?

The dependency is there:

config W1_MASTER_GPIO
	tristate "GPIO 1-wire busmaster"
	depends on GENERIC_GPIO

So it looks like the arch Kconfig has selected GENERIC_GPIO but failed
to provide the implementation.

-- 
Ville Syrjälä
syrjala@....fi
http://www.sci.fi/~syrjala/
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