On Sep 26, 2013, at 7:18 PM, Scott Wood wrote:
> Otherwise, we get a debug traceback due to the use of
> smp_processor_id() (or get_paca()) inside hard_smp_processor_id().
> mpic_host_map() is just looking for a default CPU, so it doesn't matter
> if we migrate after getting the CPU ID.
>
> Signed-off-by: Scott Wood <scottw...@freescale.com>
> ---
> arch/powerpc/sysdev/mpic.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
> index 1be54fa..bdcb858 100644
> --- a/arch/powerpc/sysdev/mpic.c
> +++ b/arch/powerpc/sysdev/mpic.c
> @@ -1088,8 +1088,14 @@ static int mpic_host_map(struct irq_domain *h,
> unsigned int virq,
> * is done here.
> */
> if (!mpic_is_ipi(mpic, hw) && (mpic->flags & MPIC_NO_RESET)) {
> + int cpu;
> +
> + preempt_disable();
> + cpu = mpic_processor_id(mpic);
> + preempt_enable();
> +
Any reason you didn't stick this inside of mpic_processor_id() ?
> mpic_set_vector(virq, hw);
> - mpic_set_destination(virq, mpic_processor_id(mpic));
> + mpic_set_destination(virq, cpu);
> mpic_irq_set_priority(virq, 8);
> }
>
> --
> 1.8.1.2
>
>
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@lists.ozlabs.org
> https://lists.ozlabs.org/listinfo/linuxppc-dev
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
