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    SubjectRe: [PATCH v5 06/27] irq_domain/powerpc: eliminate irq_map; use irq_alloc_desc() instead

    On Fri, 6 Apr 2012, Andreas Schwab wrote:

    > Thomas Gleixner <tglx@linutronix.de> writes:
    >
    > > And it looks like the irqdomain code is the real culprit.
    > >
    > > void irq_set_virq_count(unsigned int count)
    > > {
    > > pr_debug("irq: Trying to set virq count to %d\n", count);
    > >
    > > BUG_ON(count < NUM_ISA_INTERRUPTS);
    > > if (count < NR_IRQS)
    > > irq_virq_count = count;
    > > }
    > >
    > > That looks simply wrong.....
    >
    > There is a single use of irq_set_virq_count, which is only relevant to
    > the PS3.

    Though irq_virq_count is statically initialized to NR_IRQS and it's
    used in the code more than once.



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