[PATCH RFC 20/22] LoongArch: convert to use arch_cpu_is_hotpluggable()

["Russell King (Oracle)" <rmk+kernel@xxxxxxxxxxxxxxx>]

Convert loongarch to use the arch_cpu_is_hotpluggable() helper rather
than arch_register_cpu(). Also remove the export as nothing should be
using arch_register_cpu() outside of the core kernel/acpi code.

Signed-off-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
---
 arch/loongarch/kernel/topology.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/loongarch/kernel/topology.c b/arch/loongarch/kernel/topology.c
index 866c2c9ef6ab..75d5c51a7cd3 100644
--- a/arch/loongarch/kernel/topology.c
+++ b/arch/loongarch/kernel/topology.c
@@ -11,11 +11,8 @@
 #include <acpi/processor.h>
 
 #ifdef CONFIG_HOTPLUG_CPU
-int arch_register_cpu(int cpu)
+bool arch_cpu_is_hotpluggable(int cpu)
 {
-	struct cpu *c = &per_cpu(cpu_devices, cpu);
-
-	c->hotpluggable = !io_master(cpu);
-	return register_cpu(c, cpu);
+	return !io_master(cpu);
 }
 #endif
-- 
2.30.2