[RFC part2 PATCH 2/9] ARM64 / ACPI: Prefill cpu possible/present maps and map logical cpu id to APIC id

[One Thousand Gnomes]

> diff --git a/drivers/acpi/plat/arm-core.c b/drivers/acpi/plat/arm-core.c
> index 45ff625..8527ecc 100644
> --- a/drivers/acpi/plat/arm-core.c
> +++ b/drivers/acpi/plat/arm-core.c
> @@ -58,6 +58,13 @@ EXPORT_SYMBOL(acpi_pci_disabled);
>   */
>  static u64 acpi_lapic_addr __initdata;
>  
> +/* available_cpus here means enabled cpu in MADT */
> +int available_cpus;
> +
> +/* Map logic cpu id to physical GIC id. */
> +int arm_cpu_to_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = -1 };
> +int boot_cpu_apic_id = -1;
> +

static ?

Really shouldn't be leaking names like "available_cpus" out of ACPI into
the global namespace


> +#ifdef CONFIG_SMP
> +	if (available_cpus == 0) {
> +		pr_info(PREFIX "Found 0 CPUs; assuming 1\n");
> +		/* FIXME: should be the real GIC id read from hardware */
> +		arm_cpu_to_apicid[available_cpus] = 0;
> +		available_cpus = 1;	/* We've got at least one of these */
> +	}
> +#endif

Isn't this true uniprocessor (by definition in fact)


> + */
> +void __init prefill_possible_map(void)

leaking more unprefixed names into the global namespace