Re: [patch 00/47] Sparse irq rework

[Thomas Gleixner]

On Sat, 9 Oct 2010, Yinghai Lu wrote:
> On 10/08/2010 11:34 PM, Thomas Gleixner wrote:
> >>  	irq = pin_2_irq(idx, apic_id, pin);
> >>  
> >> +	/* only handle fall out from setup_IO_APIC_irqs() */
> > 
> > What's the fallout ? And why are we coming here in the first place
> > when the irq is < 16 ?
> 
> setup_IO_APIC_irqs only handle apic_id == 0 or apic_id > 0 but irq < 16 via acpi override.
> 
> it seems IBM's system have apic_id == 1, and sci irq is using 30.
> 
> so at that time add that setup_IO_APIC_irq_extra() to workaround it.
> but it seems we set that two time when irq < 16.

Hmm. Ok. Thanks for figuring it out.

Thanks,

	tglx
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