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Diffstat (limited to 'arch/arm64/kernel/setup.c')
-rw-r--r--arch/arm64/kernel/setup.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 9c4bad7d7131..57ff38600828 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -357,6 +357,15 @@ void __init setup_arch(char **cmdline_p)
}
}
+static inline bool cpu_can_disable(unsigned int cpu)
+{
+#ifdef CONFIG_HOTPLUG_CPU
+ if (cpu_ops[cpu] && cpu_ops[cpu]->cpu_can_disable)
+ return cpu_ops[cpu]->cpu_can_disable(cpu);
+#endif
+ return false;
+}
+
static int __init topology_init(void)
{
int i;
@@ -366,7 +375,7 @@ static int __init topology_init(void)
for_each_possible_cpu(i) {
struct cpu *cpu = &per_cpu(cpu_data.cpu, i);
- cpu->hotpluggable = 1;
+ cpu->hotpluggable = cpu_can_disable(i);
register_cpu(cpu, i);
}