From: Xiongfeng Wang <wangxiongfeng2@huawei.com> hulk inclusion category: bugfix bugzilla: 46894 CVE: NA --------------------------- Fix the following compile error when CONFIG_HOTPLUG_CPU is disabled. arch/arm64/kernel/setup.c: In function 'arch_unregister_cpu': arch/arm64/kernel/setup.c:455:2: error: implicit declaration of function 'unregister_cpu' [-Werror=implicit-function-declaration] unregister_cpu(cpu); ^~~~~~~~~~~~~~ Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> Reviewed-by: Hanjun Guo <guohanjun@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- arch/arm64/kernel/setup.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index aa499eb2a923..8bb5ae3ac293 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -439,6 +439,8 @@ static int __init register_kernel_offset_dumper(void) } __initcall(register_kernel_offset_dumper); +#ifdef CONFIG_HOTPLUG_CPU + int arch_register_cpu(int num) { struct cpu *cpu = &per_cpu(cpu_data.cpu, num); @@ -455,3 +457,5 @@ void arch_unregister_cpu(int num) unregister_cpu(cpu); } EXPORT_SYMBOL(arch_unregister_cpu); + +#endif -- 2.25.1