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

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Date:	Fri, 11 May 2012 16:50:17 -0700
From:	Randy Dunlap <rdunlap@...otime.net>
To:	Bjørn Mork <bjorn@...k.no>
CC:	David Miller <davem@...emloft.net>, paul.gortmaker@...driver.com,
	sfr@...b.auug.org.au, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, david.daney@...ium.com
Subject: Re: [PATCH] net: of/phy: fix build error when phylib is built as
 a module

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@...otime.net>
> Cc: David Daney <david.daney@...ium.com>
> Signed-off-by: Bjørn Mork <bjorn@...k.no>


Acked-by: Randy Dunlap <rdunlap@...otime.net>

Thanks.


> ---
> I wonder if this could be as banal as this?  Not even build tested...
> 
> Should be wrapped into commit 25106022 if it works, to ensure
> bisectability.
> 
> 
> 
> Bjørn
> 
>  drivers/net/phy/mdio_bus.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
> index 83d5c9f..683ef1c 100644
> --- a/drivers/net/phy/mdio_bus.c
> +++ b/drivers/net/phy/mdio_bus.c
> @@ -88,7 +88,7 @@ static struct class mdio_bus_class = {
>  	.dev_release	= mdiobus_release,
>  };
>  
> -#ifdef CONFIG_OF_MDIO
> +#if IS_ENABLED(CONFIG_OF_MDIO)
>  /* Helper function for of_mdio_find_bus */
>  static int of_mdio_bus_match(struct device *dev, void *mdio_bus_np)
>  {



-- 
~Randy
--
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