On Fri, Feb 03, 2023 at 01:50:13PM +0000, James Morse wrote: > --- a/arch/ia64/Kconfig > +++ b/arch/ia64/Kconfig > @@ -15,6 +15,7 @@ config IA64 > select ARCH_MIGHT_HAVE_PC_PARPORT > select ARCH_MIGHT_HAVE_PC_SERIO > select ACPI > + select ACPI_HOTPLUG_CPU if ACPI > --- a/arch/loongarch/Kconfig > +++ b/arch/loongarch/Kconfig > @@ -5,6 +5,7 @@ config LOONGARCH > select ACPI > select ACPI_GENERIC_GSI if ACPI > select ACPI_MCFG if ACPI > + select ACPI_HOTPLUG_CPU if ACPI > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -59,6 +59,7 @@ config X86 > # > select ACPI_LEGACY_TABLES_LOOKUP if ACPI > select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI > + select ACPI_HOTPLUG_CPU if ACPI > --- a/drivers/acpi/Kconfig > +++ b/drivers/acpi/Kconfig > @@ -309,7 +309,6 @@ config ACPI_HOTPLUG_CPU > bool > depends on ACPI_PROCESSOR && HOTPLUG_CPU > select ACPI_CONTAINER > - default y When selecting the symbol, it's a good idea to ensure that its dependencies are satisfied. So here, ACPI_HOTPLUG_CPU depends on ACPI_PROCESSOR and HOTPLUG_CPU. For x86, you're selecting ACPI_HOTPLUG_CPU if ACPI is enabled, and ACPI can be freely enabled. HOTPLUG_CPU depends on SMP, which is also a freely selectable option. Lastly, ACPI_PROCESSOR depends on X86 || IA64 || ARM64 || LOONGARCH, and is a user selectable, defaulting-y option if ACPI is enabled. So, shouldn't the x86 select be: select ACPI_HOTPLUG_CPU if ACPI_PROCESSOR && HOTPLUG_CPU ? I suspect similar issues exist for the other architecture Kconfig files modified above. This seems to also be in the latest rfc too, which is why I'm bringing it up. Thanks. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
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