1 files changed, 6 insertions, 2 deletions

diff --git a/arch/i386/kernel/topology.c b/arch/i386/kernel/topology.c
index 07d6da36a825..79cf608e14ca 100644
--- a/arch/i386/kernel/topology.c
+++ b/arch/i386/kernel/topology.c
@@ -40,14 +40,18 @@ int arch_register_cpu(int num)
          * restrictions and assumptions in kernel. This basically
          * doesnt add a control file, one cannot attempt to offline
          * BSP.
+         *
+         * Also certain PCI quirks require not to enable hotplug control
+         * for all CPU's.
          */
-        if (!num)
-                cpu_devices[num].cpu.no_control = 1;
+        if (num && enable_cpu_hotplug)
+                cpu_devices[num].cpu.hotpluggable = 1;
 
         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);