netdev - Re: [net-next 2/3] stmmac: fix timer setup when use dual mac Kconfig

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Date:	Tue, 27 Jul 2010 20:45:28 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	peppe.cavallaro@...com
Cc:	netdev@...r.kernel.org
Subject: Re: [net-next 2/3] stmmac: fix timer setup when use dual mac
 Kconfig

From: Giuseppe CAVALLARO <peppe.cavallaro@...com>
Date: Tue, 27 Jul 2010 12:09:46 +0200

> The driver erroneously sets the tmrate to zero when the
> TMU initialisation fails. This actually generates problems
> while using the dual GMAC configuration.
> 
> With this patch, enabling both the dual gmac and the timer
> optimisation, the first interface opened will use the tmu
> channel 2, the second one won't be able to use the timer but
> will continue to work without mitigating the interrupts by
> using the external timer (i.e. TMU channel 2).
> 
> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@...com>

This is not how we do things.

All of the options that influence the driver should be right next
to the main driver option.

What the platform SOC Kconfig's can do is 'select' those option.

But even better is to get rid of all of these feature Kconfig options,
and communicate the capability in the platform_device probe
information or similar.
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