diff --git a/mt7981-mac80211/lede-branch-build-sanity.sh b/mt7981-mac80211/lede-branch-build-sanity.sh
new file mode 100755
index 0000000..22472ed
--- /dev/null
+++ b/mt7981-mac80211/lede-branch-build-sanity.sh
@@ -0,0 +1,80 @@
+#!/bin/bash
+source ./autobuild/lede-build-sanity.sh
+
+#get the brach_name
+temp=${0%/*}
+branch_name=${temp##*/}
+swpath=0
+kasan=0
+backport_new=0
+args=
+
+for arg in $*; do
+	case "$arg" in
+	"swpath")
+		swpath=1
+		;;
+	"kasan")
+		kasan=1
+		;;
+	"dev")
+		backport_new=1
+		;;
+	*)
+		args="$args $arg"
+		;;
+	esac
+done
+set -- $args
+
+change_dot_config() {
+	[ "$swpath" = "1" ] && {
+		sed -i 's/CONFIG_BRIDGE_NETFILTER=y/# CONFIG_BRIDGE_NETFILTER is not set/g' ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		sed -i 's/CONFIG_NETFILTER_FAMILY_BRIDGE=y/# CONFIG_NETFILTER_FAMILY_BRIDGE is not set/g' ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		sed -i 's/CONFIG_SKB_EXTENSIONS=y/# CONFIG_SKB_EXTENSIONS is not set/g' ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		sed -i '/AUTOLOAD:=$(call AutoProbe,mt7915e)/a\  MODPARAMS.mt7915e:=wed_enable=0' ${BUILD_DIR}/package/kernel/mt76/Makefile
+	}
+
+	[ "$kasan" = "1" ] && {
+		sed -i 's/# CONFIG_KERNEL_KASAN is not set/CONFIG_KERNEL_KASAN=y/g' ${BUILD_DIR}/.config
+		sed -i 's/# CONFIG_KERNEL_KALLSYMS is not set/CONFIG_KERNEL_KALLSYMS=y/g' ${BUILD_DIR}/.config
+		echo "CONFIG_KERNEL_KASAN_OUTLINE=y" >> ${BUILD_DIR}/.config
+		echo "CONFIG_DEBUG_KMEMLEAK=y" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		echo "CONFIG_DEBUG_KMEMLEAK_AUTO_SCAN=y" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		echo "# CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF is not set" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		echo "CONFIG_DEBUG_KMEMLEAK_MEM_POOL_SIZE=16000" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		echo "CONFIG_DEBUG_KMEMLEAK_TEST=m" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		echo "CONFIG_KALLSYMS=y" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		echo "CONFIG_KASAN=y" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		echo "CONFIG_KASAN_GENERIC=y" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		echo "# CONFIG_KASAN_INLINE is not set" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		echo "CONFIG_KASAN_OUTLINE=y" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		echo "CONFIG_KASAN_SHADOW_OFFSET=0xdfffffd000000000" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		echo "# CONFIG_TEST_KASAN is not set" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		echo "CONFIG_SLUB_DEBUG=y" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+		echo "CONFIG_FRAME_WARN=4096" >> ${BUILD_DIR}/target/linux/mediatek/mt7981/config-5.4
+	}
+
+	[ "$backport_new" = "1" ] && {
+		rm -rf ${BUILD_DIR}/package/kernel/mt76/patches/*revert-for-backports*.patch
+	}
+}
+
+#step1 clean
+#clean
+
+#do prepare stuff
+prepare
+
+prepare_flowoffload
+
+prepare_mac80211 ${backport_new}
+
+prepare_final ${branch_name}
+
+change_dot_config
+
+#step2 build
+if [ -z ${1} ]; then
+	build_log ${branch_name} -j1 || [ "$LOCAL" != "1" ].
+fi