netdev - Re: [PATCH] Change S390 anti-dependency to CONFIG_GENERIC

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Message-Id: <20081014.154422.192817982.davem@davemloft.net>
Date:	Tue, 14 Oct 2008 15:44:22 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	afleming@...escale.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] Change S390 anti-dependency to CONFIG_GENERIC_HARDIRQS
 dependency

From: Andy Fleming <afleming@...escale.com>
Date: Tue, 14 Oct 2008 17:28:13 -0500

> PHY Lib and DSA expect request_irq and other such functions to exist.
> S390 doesn't support those functions, however we should mark the actual
> dependency, which is generic hardirq support, rather than explicitly
> depend on !S390.
> 
> Signed-off-by: Andy Fleming <afleming@...escale.com>
> ---
> This makes more sense to me, but I could be missing something?

GENERIC_HARDIRQS is not the correct dependency.

Not all architectures use the generic IRQ layer, yet have
support for interrupts (request_irq(), free_irq(), etc.)

Two such platforms are 32-bit sparc and m68k.
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