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    Subject[PATCH 04/12] Fix find_unbound_irq in presence of ioapic irqs.
    Date
    Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
    ---
    drivers/xen/events.c | 11 ++++++++++-
    1 files changed, 10 insertions(+), 1 deletions(-)

    diff --git a/drivers/xen/events.c b/drivers/xen/events.c
    index 3523dbb..a137a2f 100644
    --- a/drivers/xen/events.c
    +++ b/drivers/xen/events.c
    @@ -337,9 +337,18 @@ static int find_unbound_irq(void)
    int irq;
    struct irq_desc *desc;

    - for (irq = 0; irq < nr_irqs; irq++)
    + for (irq = 0; irq < nr_irqs; irq++) {
    + desc = irq_to_desc(irq);
    + /* only 0->15 have init'd desc; handle irq > 16 */
    + if (desc == NULL)
    + break;
    + if (desc->chip == &no_irq_chip)
    + break;
    + if (desc->chip != &xen_dynamic_chip)
    + continue;
    if (irq_info[irq].type == IRQT_UNBOUND)
    break;
    + }

    if (irq == nr_irqs)
    panic("No available IRQ to bind to: increase nr_irqs!\n");
    --
    1.5.4.3


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