On Wednesday 04 December 2013, Rob Herring wrote:
index a0c2ca6..1428024 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -420,7 +420,9 @@ void __init smp_prepare_cpus(unsigned int max_cpus) if (err) continue;
+#ifndef CONFIG_ACPI set_cpu_present(cpu, true); +#endif
Should this be moved to DT cpu topology related code?
More importantly, the #ifndef is certainly wrong here: It is important that you can turn CONFIG_ACPI on or off without impacting the run-time code path for non-ACPI systems. The snippet above breaks this because we no longer set the cpu mask when ACPI is turned on but not used.
Arnd