On 13/11/20 09:37, Will Deacon wrote: > +const struct cpumask *system_32bit_el0_cpumask(void) > +{ > + if (!system_supports_32bit_el0()) > + return cpu_none_mask; > + > + if (static_branch_unlikely(&arm64_mismatched_32bit_el0)) > + return cpu_32bit_el0_mask; > + > + return cpu_present_mask; > +} Nit: this is used in patch 13 to implement arch_cpu_allowed_mask(). Since that latter defaults to cpu_possible_mask, this probably should too.