diff --git a/arch/arm/configs/mx51_efikamx_defconfig b/arch/arm/configs/mx51_efikamx_defconfig
index 7145a21c970..9a923e9af1d 100644
--- a/arch/arm/configs/mx51_efikamx_defconfig
+++ b/arch/arm/configs/mx51_efikamx_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
 # Linux kernel version: 2.6.31.14.28
-# Mon Dec 10 21:01:30 2012
+# Mon Dec 10 21:03:06 2012
 #
 CONFIG_ARM=y
 CONFIG_HAVE_PWM=y
@@ -48,11 +48,9 @@ CONFIG_SYSVIPC_SYSCTL=y
 # RCU Subsystem
 #
 # CONFIG_CLASSIC_RCU is not set
-CONFIG_TREE_RCU=y
-# CONFIG_PREEMPT_RCU is not set
+# CONFIG_TREE_RCU is not set
+CONFIG_PREEMPT_RCU=y
 # CONFIG_RCU_TRACE is not set
-CONFIG_RCU_FANOUT=32
-# CONFIG_RCU_FANOUT_EXACT is not set
 # CONFIG_TREE_RCU_TRACE is not set
 # CONFIG_PREEMPT_RCU_TRACE is not set
 CONFIG_IKCONFIG=y
@@ -2405,7 +2403,6 @@ CONFIG_STACKTRACE=y
 CONFIG_FRAME_POINTER=y
 # CONFIG_BOOT_PRINTK_DELAY is not set
 # CONFIG_RCU_TORTURE_TEST is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 # CONFIG_BACKTRACE_SELF_TEST is not set
 # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
 # CONFIG_FAULT_INJECTION is not set