linux-kernel - Re: [PATCH] powerpc/ep8248e: Fix compile problem if !CONFIG_FS

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Message-Id: <CB4E8B1D-60AB-4D9C-B612-8FDC389C22BC@kernel.crashing.org>
Date:	Wed, 16 Jul 2008 17:23:28 -0500
From:	Kumar Gala <galak@...nel.crashing.org>
To:	Kumar Gala <galak@...nel.crashing.org>
Cc:	Dave Jones <davej@...hat.com>,
	Scott Wood <scottwood@...escale.com>, linuxppc-dev@...abs.org,
	akpm@...ux-foundation.org, torvalds@...ux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] powerpc/ep8248e: Fix compile problem if !CONFIG_FS_ENET


On Jul 16, 2008, at 5:10 PM, Kumar Gala wrote:

>
> On Jul 16, 2008, at 4:57 PM, Dave Jones wrote:
>
>> On Wed, Jul 16, 2008 at 04:47:23PM -0500, Scott Wood wrote:
>>> On Wed, Jul 16, 2008 at 08:39:12AM -0500, Kumar Gala wrote:
>>>> If we don't enable FS_ENET we get build issues:
>>>>
>>>> arch/powerpc/platforms/built-in.o: In function  
>>>> `ep8248e_mdio_probe':
>>>> arch/powerpc/platforms/82xx/ep8248e.c:129: undefined reference to  
>>>> `alloc_mdio_bitbang'
>>>> arch/powerpc/platforms/82xx/ep8248e.c:143: undefined reference to  
>>>> `mdiobus_register'
>>>
>>> How is this possible?  CONFIG_EP8248E selects CONFIG_MDIO_BITBANG.
>>
>> If CONFIG_PHYLIB=m however, that doesn't make any difference, because
>> vmlinuz is trying to use a symbol which now lives in a module.
>
> The mdiobus_register make sense, I'm not sure get why  
> alloc_mdio_bitbang is undefined.

nevermind, I now see why the libphy is being built.

- k
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