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Date: Sat, 3 Mar 2001 14:48:56 -0700
From: Cort Dougan <cort@fsmlabs.com>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        linux-kernel@vger.kernel.org
Subject: Re: Question about IRQ_PENDING/IRQ_REPLAY
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} > I don't have a simple way on PPC to cause the interrupt to happen again,
} > as you can imagine this is rather controller-specific. However, looking
} > at the code closely, I couldn't figure out a case where having
} > IRQ_PENDING in enable_irq() makes sense.
} 
} It only makes sense for broken irq controllers. And most aren't. You can
} likely ignore it - and note how even on an x86, most of the irq controller
} code _does_ ignore it. 

We do have broken interrupt controllers in this respect.  We already have a
way of handling it.  Ben, take a look at set_lost().
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