--- zzzz-none-000/linux-4.9.325/arch/mips/boot/dts/netlogic/Makefile	2022-07-29 15:05:48.000000000 +0000
+++ seale-7590ax-800/linux-4.9.325/arch/mips/boot/dts/netlogic/Makefile	2024-09-18 09:50:46.000000000 +0000
@@ -4,10 +4,4 @@
 dtb-$(CONFIG_DT_XLP_GVP)	+= xlp_gvp.dtb
 dtb-$(CONFIG_DT_XLP_RVP)	+= xlp_rvp.dtb
 
-obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
-
-# Force kbuild to make empty built-in.o if necessary
-obj-				+= dummy.o
-
-always				:= $(dtb-y)
-clean-files			:= *.dtb *.dtb.S
+obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))