diff --git a/arch/arm/configs/rockchip_defconfig b/arch/arm/configs/rockchip_defconfig
index 5c1ac075e0e9..5f3982f51647 100644
--- a/arch/arm/configs/rockchip_defconfig
+++ b/arch/arm/configs/rockchip_defconfig
@@ -1,6 +1,5 @@
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_KERNEL_LZO=y
-# CONFIG_CROSS_MEMORY_ATTACH is not set
 # CONFIG_USELIB is not set
 CONFIG_AUDIT=y
 CONFIG_NO_HZ=y