It's essentially the same as I tested on x86_64 so you can add my
Acked-by: Mike Travis <travis@xxxxxxx>
Thanks!
Mike
David Daney wrote:
> Move the initialization of irq_default_affinity to early_irq_init as
> core_initcall is too late.
>
> irq_default_affinity can be used in init_IRQ and potentially timer and
> SMP init as well. All of these happen before core_initcall. Moving
> the initialization to early_irq_init ensures that it is initialized
> before it is used.
>
> Signed-off-by: David Daney <ddaney@xxxxxxxxxxxxxxxxxx>
> ---
> kernel/irq/handle.c | 12 ++++++++++++
> kernel/irq/manage.c | 8 --------
> 2 files changed, 12 insertions(+), 8 deletions(-)
>
> diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
> index c20db0b..a9fbb01 100644
> --- a/kernel/irq/handle.c
> +++ b/kernel/irq/handle.c
> @@ -39,6 +39,14 @@ void handle_bad_irq(unsigned int irq, struct irq_desc *desc)
> ack_bad_irq(irq);
> }
>
> +static inline void __init init_irq_default_affinity(void)
> +{
> +#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_HARDIRQS)
> + alloc_bootmem_cpumask_var(&irq_default_affinity);
> + cpumask_setall(irq_default_affinity);
> +#endif
> +}
> +
> /*
> * Linux has a controller-independent interrupt architecture.
> * Every controller has a 'controller-template', that is used
> @@ -134,6 +142,8 @@ int __init early_irq_init(void)
> int legacy_count;
> int i;
>
> + init_irq_default_affinity();
> +
> desc = irq_desc_legacy;
> legacy_count = ARRAY_SIZE(irq_desc_legacy);
>
> @@ -219,6 +229,8 @@ int __init early_irq_init(void)
> int count;
> int i;
>
> + init_irq_default_affinity();
> +
> desc = irq_desc;
> count = ARRAY_SIZE(irq_desc);
>
> diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
> index 618a64f..291f036 100644
> --- a/kernel/irq/manage.c
> +++ b/kernel/irq/manage.c
> @@ -18,14 +18,6 @@
> #if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_HARDIRQS)
> cpumask_var_t irq_default_affinity;
>
> -static int init_irq_default_affinity(void)
> -{
> - alloc_cpumask_var(&irq_default_affinity, GFP_KERNEL);
> - cpumask_setall(irq_default_affinity);
> - return 0;
> -}
> -core_initcall(init_irq_default_affinity);
> -
> /**
> * synchronize_irq - wait for pending IRQ handlers (on other CPUs)
> * @irq: interrupt number to wait for
