Re: [PATCH RFC v4 02/15] ACPI: processor: Register all CPUs from acpi_processor_get_info()

[Thomas Gleixner <tglx@linutronix.de>]

On Thu, Feb 15 2024 at 20:22, Rafael J. Wysocki wrote:
> On Wed, Jan 31, 2024 at 5:50 PM Russell King <rmk+kernel@armlinux.org.uk> wrote:
>> diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
>> index 47de0f140ba6..13d052bf13f4 100644
>> --- a/drivers/base/cpu.c
>> +++ b/drivers/base/cpu.c
>> @@ -553,7 +553,11 @@ static void __init cpu_dev_register_generic(void)
>>  {
>>         int i, ret;
>>
>> -       if (!IS_ENABLED(CONFIG_GENERIC_CPU_DEVICES))
>> +       /*
>> +        * When ACPI is enabled, CPUs are registered via
>> +        * acpi_processor_get_info().
>> +        */
>> +       if (!IS_ENABLED(CONFIG_GENERIC_CPU_DEVICES) || !acpi_disabled)
>>                 return;
>
> Honestly, this looks like a quick hack to me and it absolutely
> requires an ACK from the x86 maintainers to go anywhere.

That should work, but yes I agree it's all but pretty.