arm64: convert to arch_cpu_is_hotpluggable()

Convert arm64 to use the arch_cpu_is_hotpluggable() helper rather than
arch_register_cpu().

Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/E1r5R3g-00Cszg-PP@rmk-PC.armlinux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 165bd2c0dd5a7f9b469a9c765224a611a962a22f..42c690bb2d608c972404dbb52918ed3d044c17b2 100644 (file)
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -402,13 +402,9 @@ static inline bool cpu_can_disable(unsigned int cpu)
        return false;
 }
 
-int arch_register_cpu(int num)
+bool arch_cpu_is_hotpluggable(int num)
 {
-       struct cpu *cpu = &per_cpu(cpu_devices, num);
-
-       cpu->hotpluggable = cpu_can_disable(num);
-
-       return register_cpu(cpu, num);
+       return cpu_can_disable(num);
 }
 
 static void dump_kernel_offset(void)