Re: [PATCH] ata: Don't use NO_IRQ in pata_of_platform driver

Russell King - ARM Linux
2011-12-06T11:04:05Z

On Tue, Dec 06, 2011 at 12:00:12PM +0100, Geert Uytterhoeven wrote:
> On Tue, Dec 6, 2011 at 11:46, Russell King - ARM Linux
> <linux@arm.linux.org.uk> wrote:
> > But.. let's make one thing clear: Alan Cox and Linus have been going on
> > about how IRQ0 should not be used.  Let's be crystal clear: even x86
> > uses IRQ0.  It happens to be the PIC timer, and that gets claimed early
> > on during the x86 boot.  So please don't tell me that x86 avoids IRQ0.
> > It doesn't.  It just happens that x86 never shows IRQ0 to anything but
> > the i8253 PIC driver.
>
> It's shown in /proc/interrupts due to a "bug" in show_interrupts().
> The (gmail damaged) patch below fixes this bug.

So we now try to hide the fact that there _is_ an interrupt called 0
on x86 systems? Sorry, I can't that that seriously in any way.