linux-kernel - Re: mmotm 2009-11-24-16-47 uploaded (gpio

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Message-Id: <20091215144306.2d3aeeff.akpm@linux-foundation.org>
Date:	Tue, 15 Dec 2009 14:43:06 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Randy Dunlap <rdunlap@...otime.net>
Cc:	linux-kernel@...r.kernel.org, Wolfram Sang <w.sang@...gutronix.de>
Subject: Re: mmotm 2009-11-24-16-47 uploaded (gpio_max7301)

On Wed, 25 Nov 2009 17:46:38 -0800
Randy Dunlap <rdunlap@...otime.net> wrote:

> akpm@...ux-foundation.org wrote:
> > The mm-of-the-moment snapshot 2009-11-24-16-47 has been uploaded to
> > 
> >    http://userweb.kernel.org/~akpm/mmotm/
> > 
> > and will soon be available at
> > 
> >    git://git.zen-sources.org/zen/mmotm.git
> > 
> > It contains the following patches against 2.6.32-rc8:
> >
> > gpio-add-driver-for-max7300-i2c-gpio-extender.patch
> 
> This driver has build failures when CONFIG_I2C=m and
> MAX7301=y, MAX7301_I2C=y, MAX7301_SPI=y:
> 
> drivers/built-in.o: In function `max7301_i2c_write':
> max7301.c:(.text+0x2d9e): undefined reference to `i2c_smbus_write_byte_data'
> drivers/built-in.o: In function `max7301_i2c_read':
> max7301.c:(.text+0x2dc6): undefined reference to `i2c_smbus_read_byte_data'
> drivers/built-in.o: In function `max7301_init':
> max7301.c:(.init.text+0x42e): undefined reference to `i2c_register_driver'
> max7301.c:(.init.text+0x496): undefined reference to `i2c_del_driver'
> drivers/built-in.o: In function `max7301_exit':
> max7301.c:(.exit.text+0x14): undefined reference to `i2c_del_driver'
> 
> 
> This kconfig syntax:
> 
> config GPIO_MAX7301
>         tristate "Maxim MAX730x GPIO expander"
>         depends on I2C || SPI_MASTER
> 
> allows GPIO_MAX7301 to be y when SPI_MASTER=y and I2C=m.
> If you want to do that, you'll need to handle CONFIG_I2C=m somehow.
> 

fyi, I have this patch "on hold" due to this issue.
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