Re: [PATCH 4/5] Centralise NO_IRQ definition

[Benjamin Herrenschmidt]

On Tue, 2005-11-22 at 08:25 +1100, Paul Mackerras wrote:
> Ingo Molnar writes:
> 
> > is there any architecture where irq 0 is a legitimate setting that could 
> > occur in drivers, and which would make NO_IRQ define of 0 non-practical?  
> 
> Yes, G5 powermacs have the SATA controller on irq 0.  So if we can't
> use irq 0, I can't get to my hard disk. :)  Other powermacs also use
> irq 0 for various things, as do embedded PPC machines.

And other non-ppc embedded things I've seen in the past... I think it's
quite common outside of the x86 world

Ben.


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