diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c
index c25f23e..8caa0b7 100644
--- a/arch/x86/kernel/topology.c
+++ b/arch/x86/kernel/topology.c
@@ -44,15 +44,15 @@
 	 * Also certain PCI quirks require not to enable hotplug control
 	 * for all CPU's.
 	 */
-	if (num && enable_cpu_hotplug)
+#ifdef CONFIG_HOTPLUG_CPU
+	if (num)
 		cpu_devices[num].cpu.hotpluggable = 1;
+#endif
 
 	return register_cpu(&cpu_devices[num].cpu, num);
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
-int enable_cpu_hotplug = 1;
-
 void arch_unregister_cpu(int num) {
 	return unregister_cpu(&cpu_devices[num].cpu);
 }
diff --git a/include/asm-x86/cpu.h b/include/asm-x86/cpu.h
index 9d914e1e..b1bc7b1 100644
--- a/include/asm-x86/cpu.h
+++ b/include/asm-x86/cpu.h
@@ -13,9 +13,6 @@
 extern int arch_register_cpu(int num);
 #ifdef CONFIG_HOTPLUG_CPU
 extern void arch_unregister_cpu(int);
-extern int enable_cpu_hotplug;
-#else
-#define enable_cpu_hotplug	0
 #endif
 
 DECLARE_PER_CPU(int, cpu_state);