Subject: Re: [PATCH v2 03/17] arm64: Allow IPIs to be handled as normal interrupts

From: Valentin Schneider <[email-masked]>
Date: Fri, 10 Jul 2020 20:58:42 +0100

Itsy bitsy nit below from re-reading this.

On 24/06/20 20:57, Marc Zyngier wrote:
> diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
> index e43a8ff19f0f..c08950cc09cc 100644
> --- a/arch/arm64/kernel/smp.c
> +++ b/arch/arm64/kernel/smp.c
> @@ -76,6 +76,13 @@ enum ipi_msg_type {
>       IPI_WAKEUP
>  };
>
> +static int ipi_irq_base;
> +static int nr_ipi = NR_IPI;

If we really care, these two could be marked as __read_mostly.

> +static struct irq_desc *ipi_desc[NR_IPI];
> +
> +static void ipi_setup(int cpu);
> +static void ipi_teardown(int cpu);
> +
>  #ifdef CONFIG_HOTPLUG_CPU
>  static int op_cpu_kill(unsigned int cpu);
>  #else

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