linux-kernel - Re: [PATCH 3/3] ideapad: add hotkey support

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Date:	Fri, 03 Dec 2010 07:43:41 +0800
From:	Ike Panhc <ike.pan@...onical.com>
To:	Dave Hansen <dave@...ux.vnet.ibm.com>
CC:	linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
	Matthew Garrett <mjg@...hat.com>,
	David Woodhouse <dwmw2@...radead.org>
Subject: Re: [PATCH 3/3] ideapad: add hotkey support

On 12/03/2010 07:41 AM, Dave Hansen wrote:
> On Wed, 2010-11-17 at 15:00 +0800, Ike Panhc wrote:
>> +static void ideapad_input_report(unsigned long scancode)
>> +{
>> +       sparse_keymap_report_event(ideapad_priv->inputdev, scancode, 1, true);
>> +} 
> 
> I got a little build error about some unresolved symbols in the module
> while compiling:
>         
>         ERROR: "sparse_keymap_setup" [drivers/platform/x86/ideapad-laptop.ko] undefined!
>         ERROR: "sparse_keymap_free" [drivers/platform/x86/ideapad-laptop.ko] undefined!
>         ERROR: "sparse_keymap_report_event" [drivers/platform/x86/ideapad-laptop.ko] undefined!
>         
> You can get it to go away by setting CONFIG_INPUT_SPARSEKMAP=m or =y
> in .config.  But, I think your patches need this:
> 
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index faec777..879d266 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig
> @@ -226,6 +226,7 @@ config IDEAPAD_LAPTOP
>  	tristate "Lenovo IdeaPad Laptop Extras"
>  	depends on ACPI
>  	depends on RFKILL
> +	select INPUT_SPARSEKMAP
>  	help
>  	  This is a driver for the rfkill switches on Lenovo IdeaPad netbooks.
>  
> 
> Signed-off-by: Dave Hansen <dave@...ux.vnet.ibm.com>
> 

Thanks, you are right
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