diff --git a/[refs] b/[refs]
index 9ecb7233047e..d6d6e275a5a6 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 98272ed0d2e6509fe7dc571e77956c99bf653bb6
+refs/heads/master: ac06ea2cd06291e63951b51dd7c9a23e6a1f2683
diff --git a/trunk/arch/x86/kernel/microcode_core.c b/trunk/arch/x86/kernel/microcode_core.c
index 378e9a8f1bf8..2bcad3926edb 100644
--- a/trunk/arch/x86/kernel/microcode_core.c
+++ b/trunk/arch/x86/kernel/microcode_core.c
@@ -73,7 +73,6 @@
 #include <linux/platform_device.h>
 #include <linux/miscdevice.h>
 #include <linux/capability.h>
-#include <linux/smp_lock.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
@@ -201,7 +200,6 @@ static int do_microcode_update(const void __user *buf, size_t size)
 
 static int microcode_open(struct inode *unused1, struct file *unused2)
 {
-	cycle_kernel_lock();
 	return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
 }