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From: David Brownell <david-b@pacbell.net>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [patch 2.6.18-git] ide-cs (CompactFlash) driver, rm irq warning
Date: Mon, 2 Oct 2006 11:58:59 -0700
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On Monday 02 October 2006 10:45 am, Alan Cox wrote:
> Ar Llu, 2006-10-02 am 09:02 -0700, ysgrifennodd David Brownell:
> > Git rid of the runtime warning about pcmcia not supporting
> > exclusive IRQs, so "the driver needs updating".
> > 
> > Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
> 
> You've audited the code to check this is safely handled ?

As best I can, yes.  IDE being somewhat black-boxish to most of us.
The patch literally does no more than shut up the warning found in
drivers/pcmcia/pcmcia_resource.c ... it doesn't change any other
behavior in the PCMCIA layer.  And the IDE layer never appeared to
have a problem.

The IRQ handler seems to be drivers/ide/ide-io.c::ide_intr() and
comments there reflect the expectation that it handle shared IRQs.

- Dave