[PATCH] net: of/phy: fix build error when phylib is built as a module

[David Miller]

From: David Daney <ddaney.cavm at gmail.com>
Date: Fri, 11 May 2012 10:58:06 -0700

> On 05/11/2012 08:47 AM, Bjørn Mork wrote:
>> CONFIG_OF_MDIO is tristate and will be m if PHYLIB is m.  Use
>> IS_ENABLED macro to prevent build error:
>>
>>   ERROR: "of_mdio_find_bus" [drivers/net/phy/mdio-mux.ko] undefined!
>>
>> Reported-by: Randy Dunlap<rdunlap at xenotime.net>
>> Cc: David Daney<david.daney at cavium.com>
>> Signed-off-by: Bjørn Mork<bjorn at mork.no>
> 
> I was able to reproduce the failure, and this patch both fixes it and
> seems correct, so...
> 
> Acked-by: David Daney<david.daney at cavium.com>

Applied.