Re: [tip:x86/irq] x86: apic: Fix mismerge, add arch_probe_nr_irqs()again

From: Thomas Gleixner
Date: Tue Mar 02 2010 - 03:31:56 EST

On Mon, 1 Mar 2010, Eric W. Biederman wrote:
> Ian Campbell <ijc@xxxxxxxxxxxxxx> writes:
> > On Mon, 2010-03-01 at 10:34 -0800, Eric W. Biederman wrote:
> It is going to take a bit but our next big step for the irq methods
> is to make them all take struct irq_desc pointers instead of unsigned
> int irq, so we don't have to repeat the lookups.

That should hit 2.6.35.

> >> - Xen has an array irq_info[NR_IRQS] one of the last static arrays
> >> sized at NR_IRQs in the entire kernel.
> >
> > Hopefully the same info as is in that array could (and indeed should) be
> > instead stored in irq_desc->chip_data. Would you object to
> > arch_init_copy_chip_data and arch_free_chip_data becoming function
> > pointers within the struct irq_chip?
> No objections. Now that I see those methods it looks like they always
> should have been in irq_chip.



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