diff --git a/[refs] b/[refs]
index e35bc56b802a..44d64f6593d5 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 50e440aa5323860d9e5960143b720e461ed0c582
+refs/heads/master: e7f8b14e028f7a2f9e5c83c17164aeeeb9c61f17
diff --git a/trunk/arch/x86/kernel/smpboot_32.c b/trunk/arch/x86/kernel/smpboot_32.c
index a35055361b85..5cae17f3eb75 100644
--- a/trunk/arch/x86/kernel/smpboot_32.c
+++ b/trunk/arch/x86/kernel/smpboot_32.c
@@ -855,18 +855,6 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
 			++kicked;
 	}
 
-	/*
-	 * construct cpu_sibling_map, so that we can tell sibling CPUs
-	 * efficiently.
-	 */
-	for_each_possible_cpu(cpu) {
-		cpus_clear(per_cpu(cpu_sibling_map, cpu));
-		cpus_clear(per_cpu(cpu_core_map, cpu));
-	}
-
-	cpu_set(0, per_cpu(cpu_sibling_map, 0));
-	cpu_set(0, per_cpu(cpu_core_map, 0));
-
 	smpboot_setup_io_apic();
 
 	setup_boot_clock();