Merge "[qca-ssdk]: support hnat and RFS"
diff --git a/make/linux_opt.mk b/make/linux_opt.mk
index 2dcd0c2..625352b 100755
--- a/make/linux_opt.mk
+++ b/make/linux_opt.mk
@@ -319,6 +319,7 @@
               -I$(SYS_PATH)/include/genearted \
               -I$(SYS_PATH)/arch/arm/include/uapi \
               -I$(SYS_PATH)/source/arch/arm/include/uapi \
+              -I$(EXT_PATH) \
               -I$(SYS_PATH)/source/arch/arm/include/asm/mach
 	ifneq ($(wildcard $(SYS_PATH)/include/linux/kconfig.h),)
 		MODULE_INC += \