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    SubjectRe: [patch 01/16] irqdomain: Introduce new interfaces to support hierarchy irqdomains
    Hi Thomas, Jiang,
    On 2014/11/12 21:42, Thomas Gleixner wrote:

    > From: Jiang Liu <jiang.liu@linux.intel.com>
    > Index: tip/kernel/irq/chip.c
    > ===================================================================
    > --- tip.orig/kernel/irq/chip.c
    > +++ tip/kernel/irq/chip.c
    > @@ -15,6 +15,7 @@
    > #include <linux/module.h>
    > #include <linux/interrupt.h>
    > #include <linux/kernel_stat.h>
    > +#include <linux/irqdomain.h>
    >
    > #include <trace/events/irq.h>
    >
    > @@ -178,6 +179,7 @@ int irq_startup(struct irq_desc *desc, b
    > irq_state_clr_disabled(desc);
    > desc->depth = 0;
    >
    > + irq_domain_activate_irq(&desc->irq_data);

    I'm not sure why this is needed, please help me out.. :)

    Thanks,
    Abel

    > if (desc->irq_data.chip->irq_startup) {
    > ret = desc->irq_data.chip->irq_startup(&desc->irq_data);
    > irq_state_clr_masked(desc);
    > @@ -199,6 +201,7 @@ void irq_shutdown(struct irq_desc *desc)
    > desc->irq_data.chip->irq_disable(&desc->irq_data);
    > else
    > desc->irq_data.chip->irq_mask(&desc->irq_data);
    > + irq_domain_deactivate_irq(&desc->irq_data);
    > irq_state_set_masked(desc);
    > }
    >




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