linux-kernel - Re: [PATCH 2/2] usbnet: use MII hooks only if CONFIG

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Date:	Thu, 26 Oct 2006 17:46:36 +0200
From:	Adrian Bunk <bunk@...sta.de>
To:	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	David Brownell <david-b@...bell.net>, toralf.foerster@....de,
	netdev@...r.kernel.org, linux-usb-devel@...ts.sourceforge.net,
	link@...gy.org, greg@...ah.com, akpm@...l.org,
	zippel@...ux-m68k.org, torvalds@...l.org,
	linux-kernel@...r.kernel.org, dbrownell@...rs.sourceforge.net,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH 2/2] usbnet: use MII hooks only if CONFIG_MII is enabled

On Wed, Oct 25, 2006 at 04:58:58PM -0700, Randy Dunlap wrote:
>...
> Build tested with CONFIG_MII=y, m, n.
>...
> --- linux-2619-rc3-pv.orig/drivers/usb/net/usbnet.c
> +++ linux-2619-rc3-pv/drivers/usb/net/usbnet.c
> @@ -47,6 +47,12 @@
>  
>  #define DRIVER_VERSION		"22-Aug-2005"
>  
> +#if defined(CONFIG_MII) || defined(CONFIG_MII_MODULE)
> +#define HAVE_MII		1
> +#else
> +#define HAVE_MII		0
> +#endif
>...

I'm too lame to test it, but I bet this will break with
CONFIG_USB_USBNET=y, CONFIG_MII=m, and you'll actually need

  #if defined(CONFIG_MII) || (defined(CONFIG_MII_MODULE) && defined(MODULE))

And then there's the question whether this amount of #ifdef's is 
actually worth avoiding the "select MII"...

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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