/WorkLi/Work/kbuild/linux-5.15.2$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- dtbs firmware
DTC arch/arm/boot/dts/vexpress-v2p-ca5s.dtb
DTC arch/arm/boot/dts/vexpress-v2p-ca9.dtb
DTC arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dtb
DTC arch/arm/boot/dts/vexpress-v2p-ca15_a7.dtb
make: *** No rule to make target ‘firmware’. Stop.
How to fix it?