On 6/5/25 08:07, Rafael J. Wysocki wrote: > #ifdef CONFIG_ACPI_PROCESSOR_CSTATE > +void acpi_idle_rescan_dead_smt_siblings(void) > +{ > + if (cpuidle_get_driver() == &acpi_idle_driver) > + arch_cpu_rescan_dead_smt_siblings(); > +} My only thought in reading this is that maybe cpuidle_register_driver() would be a better spot to force the arch_cpu_rescan_dead_smt_siblings(). That way, each driver would not have to do the rescan. But that's just a little nit at worst, otherwise the series looks good to me. Thanks for chasing this down. For the x86 bits: Acked-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>