x86: don't call MP_processor_info for disabled cpu (64bit)

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/x86/kernel/mpparse_64.c b/arch/x86/kernel/mpparse_64.c
index 83a36eed081b..3681b9d8f557 100644
--- a/arch/x86/kernel/mpparse_64.c
+++ b/arch/x86/kernel/mpparse_64.c
@@ -678,6 +678,10 @@ void __cpuinit mp_register_lapic(u8 id, u8 enabled)
         struct mpc_config_processor processor;
         int boot_cpu = 0;
 
+        if (!enabled) {
+                ++disabled_cpus;
+                return;
+        }
         if (id == boot_cpu_physical_apicid)
                 boot_cpu = 1;