linux-kernel - Re: [PATCH -next] power: fix bq27x00

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Date:	Fri, 10 May 2013 11:05:27 -0700
From:	Anton Vorontsov <anton@...msg.org>
To:	Xiong Zhou <jencce.kernel@...il.com>
Cc:	Lars-Peter Clausen <lars@...afoo.de>, dwmw2@...radead.org,
	linux-next@...r.kernel.org,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] power: fix bq27x00_battery kconfig

On Tue, May 07, 2013 at 10:15:56AM +0800, Xiong Zhou wrote:
> From: Xiong Zhou <jencce.kernel@...il.com>
> 
> This patch fixes build failure(randconfig) of next-20130501.
> When config I2C as m, BATTERY_BQ27x00 as y, here comes the failure.
> The driver depends on I2C only if I2C is not disabled, as Lars
> commented. Last version of this patch make the driver depend on I2C
> unconditionally.
> 
> Failure message:
> drivers/built-in.o: In function `bq27x00_read_i2c':
> bq27x00_battery.c:(.text+0x1082a7): undefined reference to `i2c_transfer'
> drivers/built-in.o: In function `bq27x00_battery_init':
> bq27x00_battery.c:(.init.text+0x6085): undefined reference to `i2c_register_driver'
> bq27x00_battery.c:(.init.text+0x60c7): undefined reference to `i2c_del_driver'
> drivers/built-in.o: In function `bq27x00_battery_exit':
> bq27x00_battery.c:(.exit.text+0xbf0): undefined reference to `i2c_del_driver'
> make: *** [vmlinux] Error 1
> 
> Signed-off-by: Xiong Zhou <jencce.kernel@...il.com>
> Cc: Lars-Peter Clausen <lars@...afoo.de>
> ---

Applied, thanks!

> drivers/power/Kconfig |    1 +
> 1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
> index 0d0b5d7..f11bacd 100644
> --- a/drivers/power/Kconfig
> +++ b/drivers/power/Kconfig
> @@ -152,6 +152,7 @@ config BATTERY_SBS
>  
>  config BATTERY_BQ27x00
>  	tristate "BQ27x00 battery driver"
> +	depends on I2C || I2C=n
>  	help
>  	  Say Y here to enable support for batteries with BQ27x00 (I2C/HDQ) chips.
>  
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