Subject: Re: randconfig build error with next-20150521, in drivers/platform/x86/dell-rbtn.c

From: Randy Dunlap <[email-masked]>
Date: Mon, 01 Jun 2015 09:40:48 -0700

On 05/21/15 13:07, Pali Rohár wrote:
> On Thursday 21 May 2015 21:56:15 Darren Hart wrote:
>> On Thu, May 21, 2015 at 10:36:15AM -0700, Jim Davis wrote:
>>> Building with the attached random configuration file,
>>>
>>> drivers/built-in.o: In function `rbtn_remove':
>>> dell-rbtn.c:(.text+0x31d7f4): undefined reference to
>>> `input_unregister_device' drivers/built-in.o: In function
>>> `rbtn_notify':
>>> dell-rbtn.c:(.text+0x31d8e5): undefined reference to `input_event'
>>> dell-rbtn.c:(.text+0x31d8f8): undefined reference to `input_event'
>>> dell-rbtn.c:(.text+0x31d911): undefined reference to `input_event'
>>> dell-rbtn.c:(.text+0x31d924): undefined reference to `input_event'
>>> drivers/built-in.o: In function `rbtn_add':
>>> dell-rbtn.c:(.text+0x31da11): undefined reference to
>>> `input_allocate_device' dell-rbtn.c:(.text+0x31da4a): undefined
>>> reference to `input_register_device' dell-rbtn.c:(.text+0x31da5e):
>>> undefined reference to `input_free_device' Makefile:938: recipe
>>> for target 'vmlinux' failed
>>
>> Thanks Jim,
>>
>> Pali, the DELL_RBTN needs to ensure if it it's built-in, that INPUT
>> is too. ...
>>
>>> CONFIG_INPUT=m
>>> CONFIG_INPUT_FF_MEMLESS=m
>>> CONFIG_INPUT_POLLDEV=m
>>> CONFIG_INPUT_SPARSEKMAP=m
>>> CONFIG_INPUT_MATRIXKMAP=m
>>
>> ...
>>
>>> CONFIG_DELL_RBTN=y
>>
>> Please submit a fix as a new patch.
> 
> I believe that this patch is needed:
> 
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index 8c03223..d025fd8 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig
> @@ -141,6 +141,7 @@ config DELL_SMO8800
>  config DELL_RBTN
>  	tristate "Dell Airplane Mode Switch driver"
>  	depends on ACPI
> +	depends on INPUT
>  	depends on RFKILL
>  	---help---
>  	  Say Y here if you want to support Dell Airplane Mode Switch ACPI
> 
> I did not tested it yet, but all other drivers depends on INPUT.
> 

Acked-by: Randy Dunlap <[email-masked]>

Please get the patch merged.

Thanks.

-- 
~Randy