linux-kernel - Re: [PATCH] x86: include: asm: Fix build warning

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Date:	Tue, 29 Sep 2015 10:08:58 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Borislav Petkov <bp@...en8.de>,
	Ksenija Stanojevic <ksenija.stanojevic@...il.com>
Cc:	tglx@...utronix.de, mingo@...hat.com, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86: include: asm: Fix build warning

On 09/29/2015 10:06 AM, Borislav Petkov wrote:
> On Tue, Sep 29, 2015 at 06:25:46PM +0200, Ksenija Stanojevic wrote:
>> Fix build warnings:
>>
>> error: implicit declaration of function ‘olpc_board_at_least’
>> [-Werror=implicit-function-declaration]
>>
>>  error: implicit declaration of function ‘olpc_board’
>> [-Werror=implicit-function-declaration]
> 
> How exactly do you trigger that?
> 
>> in files:
>> drivers/power/olpc_battery.c
>> drivers/input/mouse/hgpk.c
>> drivers/staging/olpc_dcon/olpc_dcon.c
>> arch/x86/platform/olpc/olpc.c
>> sound/pci/cs5535audio/cs5535audio_olpc.c
> 
> AFAICT, those should all depend on CONFIG_OLPC which defines those
> functions...
> 

It wouldn't be entirely impossible if OLPC has bitrotted.  This is one
of the many problems with nonstandard hardware.

	-hpa


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