linux-kernel - Re: [PATCH] x86, olpc: Fix dependency on POWER

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Date:	Sun, 24 Jul 2011 10:36:10 -0700
From:	Randy Dunlap <rdunlap@...otime.net>
To:	Daniel Drake <dsd@...top.org>
Cc:	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
	x86@...nel.org, linux-kernel@...r.kernel.org, dilinger@...ued.net
Subject: Re: [PATCH] x86, olpc: Fix dependency on POWER_SUPPLY

On Sun, 24 Jul 2011 18:33:21 +0100 (BST) Daniel Drake wrote:

> As reported by Randy Dunlap, CONFIG_POWER_SUPPLY=m caused a compile error:
> 
> arch/x86/built-in.o: In function `battery_status_changed':
> olpc-xo15-sci.c:(.text+0x3acdd): undefined reference to `power_supply_get_by_name'
> olpc-xo15-sci.c:(.text+0x3ad04): undefined reference to `power_supply_changed'
> 
> The SCI drivers, as bool, require POWER_SUPPLY to be builtin. Use
> select to make that a hard requirement and avoid this build failure.
> 
> Signed-off-by: Daniel Drake <dsd@...top.org>

Acked-by: Randy Dunlap <rdunlap@...otime.net>

Thanks.

> ---
>  arch/x86/Kconfig |    6 ++++--
>  1 files changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 8af5ba8..b198c01 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -2089,7 +2089,8 @@ config OLPC_XO1_RTC
>  
>  config OLPC_XO1_SCI
>  	bool "OLPC XO-1 SCI extras"
> -	depends on OLPC && OLPC_XO1_PM && POWER_SUPPLY
> +	depends on OLPC && OLPC_XO1_PM
> +	select POWER_SUPPLY
>  	select GPIO_CS5535
>  	select MFD_CORE
>  	---help---
> @@ -2103,7 +2104,8 @@ config OLPC_XO1_SCI
>  
>  config OLPC_XO15_SCI
>  	bool "OLPC XO-1.5 SCI extras"
> -	depends on OLPC && ACPI && POWER_SUPPLY
> +	depends on OLPC && ACPI
> +	select POWER_SUPPLY
>  	---help---
>  	  Add support for SCI-based features of the OLPC XO-1.5 laptop:
>  	   - EC-driven system wakeups
> -- 
> 1.7.6
> 


---
~Randy
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