1 files changed, 10 insertions, 6 deletions

diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index abb17a613b1..26228e2d01a 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -36,9 +36,11 @@ void arch_fix_phys_package_id(int num, u32 slot)
 }
 EXPORT_SYMBOL_GPL(arch_fix_phys_package_id);
 
-int arch_register_cpu(int num)
+
+#ifdef CONFIG_HOTPLUG_CPU
+int __ref arch_register_cpu(int num)
 {
-#if defined (CONFIG_ACPI) && defined (CONFIG_HOTPLUG_CPU)
+#ifdef CONFIG_ACPI
         /*
          * If CPEI can be re-targetted or if this is not
          * CPEI target, then it is hotpluggable
@@ -47,19 +49,21 @@ int arch_register_cpu(int num)
                 sysfs_cpus[num].cpu.hotpluggable = 1;
         map_cpu_to_node(num, node_cpuid[num].nid);
 #endif
-
         return register_cpu(&sysfs_cpus[num].cpu, num);
 }
-
-#ifdef CONFIG_HOTPLUG_CPU
+EXPORT_SYMBOL(arch_register_cpu);
 
 void arch_unregister_cpu(int num)
 {
         unregister_cpu(&sysfs_cpus[num].cpu);
         unmap_cpu_from_node(num, cpu_to_node(num));
 }
-EXPORT_SYMBOL(arch_register_cpu);
 EXPORT_SYMBOL(arch_unregister_cpu);
+#else
+static int __init arch_register_cpu(int num)
+{
+        return register_cpu(&sysfs_cpus[num].cpu, num);
+}
 #endif /*CONFIG_HOTPLUG_CPU*/