LoongArch provides its own arch_unregister_cpu(). This clears the hotpluggable flag, then unregisters the CPU.
It isn't necessary to clear the hotpluggable flag when unregistering a cpu. unregister_cpu() writes NULL to the percpu cpu_sys_devices pointer, meaning cpu_is_hotpluggable() will return false, as get_cpu_device() has returned NULL.
Remove arch_unregister_cpu() and use the __weak version.
Signed-off-by: James Morse james.morse@arm.com --- arch/loongarch/kernel/topology.c | 9 --------- 1 file changed, 9 deletions(-)
diff --git a/arch/loongarch/kernel/topology.c b/arch/loongarch/kernel/topology.c index bfc1f199d07b..64798bdbef8c 100644 --- a/arch/loongarch/kernel/topology.c +++ b/arch/loongarch/kernel/topology.c @@ -20,13 +20,4 @@ int arch_register_cpu(int cpu) return ret; } EXPORT_SYMBOL(arch_register_cpu); - -void arch_unregister_cpu(int cpu) -{ - struct cpu *c = &per_cpu(cpu_devices, cpu); - - c->hotpluggable = 0; - unregister_cpu(c); -} -EXPORT_SYMBOL(arch_unregister_cpu); #endif