Dimitri Sivanich <[email protected]> wrote:
>
> The generic request_irq/setup_irq code should support the SA_PERCPU_IRQ flag.
>
> This patch was posted previously, but this one should build on all arch's.
>
> Signed-off-by: Dimitri Sivanich <[email protected]>
>
> Index: linux-2.6.15/kernel/irq/manage.c
> ===================================================================
> --- linux-2.6.15.orig/kernel/irq/manage.c 2006-03-20 13:11:01.766522017 -0600
> +++ linux-2.6.15/kernel/irq/manage.c 2006-03-21 15:26:12.305876769 -0600
> @@ -206,6 +206,10 @@ int setup_irq(unsigned int irq, struct i
> * The following block of code has to be executed atomically
> */
> spin_lock_irqsave(&desc->lock,flags);
> +#if defined(ARCH_HAS_IRQ_PER_CPU) && defined(SA_PERCPU_IRQ)
> + if (new->flags & SA_PERCPU_IRQ)
> + desc->status |= IRQ_PER_CPU;
> +#endif
> p = &desc->action;
> if ((old = *p) != NULL) {
> /* Can't share interrupts unless both agree to */
hm. Last time around I pointed out that we should be checking that all
handlers for this IRQ agree about the percpuness. What happened to
that?
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