diff --git a/arch/arm/configs/msm8960-perf_defconfig b/arch/arm/configs/msm8960-perf_defconfig
index 620c8c0..4cbd1d1 100644
--- a/arch/arm/configs/msm8960-perf_defconfig
+++ b/arch/arm/configs/msm8960-perf_defconfig
@@ -63,6 +63,7 @@
 CONFIG_MSM_SMD_PKG4=y
 CONFIG_MSM_PCIE=y
 CONFIG_MSM_BAM_DMUX=y
+CONFIG_MSM_RMNET_SMUX=y
 CONFIG_MSM_DSPS=y
 CONFIG_MSM_IPC_ROUTER=y
 CONFIG_MSM_IPC_ROUTER_SMD_XPRT=y
@@ -282,6 +283,9 @@
 CONFIG_INPUT_UINPUT=y
 CONFIG_INPUT_PMIC8XXX_PWRKEY=y
 # CONFIG_LEGACY_PTYS is not set
+CONFIG_N_SMUX=y
+CONFIG_N_SMUX_LOOPBACK=y
+CONFIG_SMUX_CTL=y
 CONFIG_SERIAL_MSM_HS=y
 CONFIG_SERIAL_MSM_HSL=y
 CONFIG_SERIAL_MSM_HSL_CONSOLE=y
diff --git a/arch/arm/configs/msm8960_defconfig b/arch/arm/configs/msm8960_defconfig
index 6f7102c..a901684 100644
--- a/arch/arm/configs/msm8960_defconfig
+++ b/arch/arm/configs/msm8960_defconfig
@@ -62,6 +62,7 @@
 CONFIG_MSM_SMD_PKG4=y
 CONFIG_MSM_PCIE=y
 CONFIG_MSM_BAM_DMUX=y
+CONFIG_MSM_RMNET_SMUX=y
 CONFIG_MSM_DSPS=y
 CONFIG_MSM_IPC_ROUTER=y
 CONFIG_MSM_IPC_ROUTER_SMD_XPRT=y
@@ -291,6 +292,9 @@
 CONFIG_INPUT_UINPUT=y
 CONFIG_INPUT_PMIC8XXX_PWRKEY=y
 # CONFIG_LEGACY_PTYS is not set
+CONFIG_N_SMUX=y
+CONFIG_N_SMUX_LOOPBACK=y
+CONFIG_SMUX_CTL=y
 CONFIG_SERIAL_MSM_HS=y
 CONFIG_SERIAL_MSM_HSL=y
 CONFIG_SERIAL_MSM_HSL_CONSOLE=y