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Date:	Sat, 2 Feb 2008 22:15:02 -0800
From:	Andrew Morton <>
To:	Rusty Russell <>
Cc:	Jeff Garzik <>,,
Subject: Re: [PATCH] request_irq() always returns -EINVAL with a NULL

On Thu, 17 Jan 2008 17:57:58 +1100 Rusty Russell <> wrote:

> I assume that these ancient network drivers were trying to find out if
> an irq is available.  eepro.c expecting +EBUSY was doubly wrong.
> I'm not sure that can_request_irq() is the right thing, but these drivers
> are definitely wrong.
> request_irq should BUG() on bad input, and these would have been found
> earlier.

This breaks non-CONFIG_GENERIC_HARDIRQS architectures.


drivers/net/3c503.c: In function 'el2_open':
drivers/net/3c503.c:382: error: implicit declaration of function 'can_request_irq'

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