kbuild: clean up *.dtb and *.dtb.S patterns from top-level Makefile

We need to add "clean-files" in Makfiles to clean up DT blobs, but we
often miss to do so.

Since there are no source files that end with .dtb or .dtb.S, so we
can clean-up those files from the top-level Makefile.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/kbuild/makefiles.txt

@@ -1153,7 +1153,6 @@ When kbuild executes, the following steps are followed (roughly):
 
 	Example:
 		targets += $(dtb-y)
-		clean-files += *.dtb
 		DTC_FLAGS ?= -p 1024
 
 --- 6.8 Custom kbuild commands

Makefile

@@ -1544,7 +1544,7 @@ clean: $(clean-dirs)
 	$(call cmd,rmfiles)
 	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
 		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-		-o -name '*.ko.*' \
+		-o -name '*.ko.*' -o -name '*.dtb' -o -name '*.dtb.S' \
 		-o -name '*.dwo'  \
 		-o -name '*.su'  \
 		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \

arch/arc/boot/dts/Makefile

@@ -14,4 +14,3 @@ dtstree		:= $(srctree)/$(src)
 dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts))
 
 always := $(dtb-y)
-clean-files := *.dtb  *.dtb.S

arch/arm/boot/dts/Makefile

@@ -1074,4 +1074,3 @@ dtstree		:= $(srctree)/$(src)
 dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts))
 
 always		:= $(dtb-y)
-clean-files	:= *.dtb

arch/arm64/boot/dts/actions/Makefile

@@ -2,4 +2,3 @@ dtb-$(CONFIG_ARCH_ACTIONS) += s900-bubblegum-96.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/al/Makefile

@@ -2,4 +2,3 @@ dtb-$(CONFIG_ARCH_ALPINE)	+= alpine-v2-evp.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/allwinner/Makefile

@@ -11,4 +11,3 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-nanopi-neo2.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/altera/Makefile

@@ -2,4 +2,3 @@ dtb-$(CONFIG_ARCH_STRATIX10) += socfpga_stratix10_socdk.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/amd/Makefile

@@ -4,4 +4,3 @@ dtb-$(CONFIG_ARCH_SEATTLE) += amd-overdrive.dtb \
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/amlogic/Makefile

@@ -22,4 +22,3 @@ dtb-$(CONFIG_ARCH_MESON) += meson-gxm-rbox-pro.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/apm/Makefile

@@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_XGENE) += apm-merlin.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/arm/Makefile

@@ -5,4 +5,3 @@ dtb-$(CONFIG_ARCH_VEXPRESS) += vexpress-v2f-1xv7-ca53x2.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/broadcom/Makefile

@@ -4,4 +4,3 @@ dts-dirs	+= northstar2
 dts-dirs	+= stingray
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/broadcom/northstar2/Makefile

@@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_BCM_IPROC) += ns2-xmc.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/broadcom/stingray/Makefile

@@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_BCM_IPROC) += bcm958742t.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/cavium/Makefile

@@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_THUNDER2) += thunder2-99xx.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/exynos/Makefile

@@ -5,4 +5,3 @@ dtb-$(CONFIG_ARCH_EXYNOS) += \
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/freescale/Makefile

@@ -15,4 +15,3 @@ dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls2088a-rdb.dtb
  
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/hisilicon/Makefile

@@ -7,4 +7,3 @@ dtb-$(CONFIG_ARCH_HISI) += hip07-d05.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/lg/Makefile

@@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_LG1K) += lg1313-ref.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/marvell/Makefile

@@ -12,4 +12,3 @@ dtb-$(CONFIG_ARCH_MVEBU) += armada-8080-db.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/mediatek/Makefile

@@ -7,4 +7,3 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-evb.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/nvidia/Makefile

@@ -6,4 +6,3 @@ dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-smaug.dtb
 dtb-$(CONFIG_ARCH_TEGRA_186_SOC) += tegra186-p2771-0000.dtb
 
 always		:= $(dtb-y)
-clean-files	:= *.dtb

arch/arm64/boot/dts/qcom/Makefile

@@ -8,4 +8,3 @@ dtb-$(CONFIG_ARCH_QCOM)	+= msm8996-mtp.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/realtek/Makefile

@@ -2,4 +2,3 @@ dtb-$(CONFIG_ARCH_REALTEK) += rtd1295-zidoo-x9s.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/renesas/Makefile

@@ -5,4 +5,3 @@ dtb-$(CONFIG_ARCH_R8A7796) += r8a7796-salvator-x.dtb r8a7796-m3ulcb.dtb
 dtb-$(CONFIG_ARCH_R8A77995) += r8a77995-draak.dtb
 
 always		:= $(dtb-y)
-clean-files	:= *.dtb

arch/arm64/boot/dts/rockchip/Makefile

@@ -13,4 +13,3 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire-excavator.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/socionext/Makefile

@@ -6,4 +6,3 @@ dtb-$(CONFIG_ARCH_UNIPHIER) += \
 	uniphier-pxs3-ref.dtb
 
 always		:= $(dtb-y)
-clean-files	:= *.dtb

arch/arm64/boot/dts/sprd/Makefile

@@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_SPRD) += sc9836-openphone.dtb \
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/xilinx/Makefile

@@ -2,4 +2,3 @@ dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-ep108.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/arm64/boot/dts/zte/Makefile

@@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_ZX) += zx296718-pcbox.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb

arch/c6x/boot/dts/Makefile

@@ -16,5 +16,3 @@ $(obj)/builtin.dtb: $(obj)/$(DTB).dtb
 	$(call if_changed,cp)
 
 $(obj)/linked_dtb.o: $(obj)/builtin.dtb
-
-clean-files := *.dtb

arch/cris/boot/dts/Makefile

@@ -2,5 +2,3 @@ BUILTIN_DTB := $(patsubst "%",%,$(CONFIG_BUILTIN_DTB)).dtb.o
 ifneq ($(CONFIG_BUILTIN_DTB),"")
 obj-$(CONFIG_OF) += $(BUILTIN_DTB)
 endif
-
-clean-files := *.dtb.S

arch/h8300/boot/dts/Makefile

@@ -12,4 +12,3 @@ dtstree		:= $(srctree)/$(src)
 dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts))
 
 always	    := $(dtb-y)
-clean-files := *.dtb.S *.dtb

arch/metag/boot/dts/Makefile

@@ -18,4 +18,3 @@ dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dts
 .SECONDARY: $(obj)/$(builtindtb-y).dtb.S
 
 always += $(dtb-y)
-clean-files += *.dtb *.dtb.S

arch/microblaze/boot/Makefile

@@ -34,4 +34,4 @@ $(obj)/simpleImage.%: vmlinux FORCE
 	$(call if_changed,strip)
 	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
 
-clean-files += simpleImage.*.unstrip linux.bin.ub dts/*.dtb
+clean-files += simpleImage.*.unstrip linux.bin.ub

arch/mips/boot/dts/Makefile

@@ -18,4 +18,3 @@ dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(foreach d,$(dt
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
-clean-files	:= *.dtb *.dtb.S

arch/mips/boot/dts/brcm/Makefile

@@ -40,4 +40,3 @@ obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
 obj-				+= dummy.o
 
 always				:= $(dtb-y)
-clean-files			:= *.dtb *.dtb.S

arch/mips/boot/dts/cavium-octeon/Makefile

@@ -6,4 +6,3 @@ obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
 obj-				+= dummy.o
 
 always				:= $(dtb-y)
-clean-files			:= *.dtb *.dtb.S

arch/mips/boot/dts/img/Makefile

@@ -7,4 +7,3 @@ obj-$(CONFIG_MACH_PISTACHIO)	+= pistachio_marduk.dtb.o
 obj-				+= dummy.o
 
 always				:= $(dtb-y)
-clean-files			:= *.dtb *.dtb.S

arch/mips/boot/dts/ingenic/Makefile

@@ -7,4 +7,3 @@ obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
 obj-				+= dummy.o
 
 always				:= $(dtb-y)
-clean-files			:= *.dtb *.dtb.S

arch/mips/boot/dts/lantiq/Makefile

@@ -6,4 +6,3 @@ obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
 obj-				+= dummy.o
 
 always				:= $(dtb-y)
-clean-files			:= *.dtb *.dtb.S

arch/mips/boot/dts/mti/Makefile

@@ -7,4 +7,3 @@ obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
 obj-				+= dummy.o
 
 always				:= $(dtb-y)
-clean-files			:= *.dtb *.dtb.S

arch/mips/boot/dts/netlogic/Makefile

@@ -10,4 +10,3 @@ obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
 obj-				+= dummy.o
 
 always				:= $(dtb-y)
-clean-files			:= *.dtb *.dtb.S

arch/mips/boot/dts/ni/Makefile

@@ -4,4 +4,3 @@ dtb-$(CONFIG_FIT_IMAGE_FDT_NI169445)	+= 169445.dtb
 obj-					+= dummy.o
 
 always					:= $(dtb-y)
-clean-files				:= *.dtb *.dtb.S

arch/mips/boot/dts/pic32/Makefile

@@ -9,4 +9,3 @@ obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
 obj-				+= dummy.o
 
 always				:= $(dtb-y)
-clean-files			:= *.dtb *.dtb.S

arch/mips/boot/dts/qca/Makefile

@@ -9,4 +9,3 @@ dtb-$(CONFIG_ATH79)			+= ar9331_tl_mr3020.dtb
 obj-				+= dummy.o
 
 always				:= $(dtb-y)
-clean-files			:= *.dtb *.dtb.S

arch/mips/boot/dts/ralink/Makefile

@@ -11,4 +11,3 @@ obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
 obj-				+= dummy.o
 
 always				:= $(dtb-y)
-clean-files			:= *.dtb *.dtb.S

arch/mips/boot/dts/xilfpga/Makefile

@@ -6,4 +6,3 @@ obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
 obj-				+= dummy.o
 
 always				:= $(dtb-y)
-clean-files	:= *.dtb *.dtb.S

arch/nios2/boot/Makefile

@@ -53,7 +53,5 @@ $(obj)/%.dtb: $(src)/dts/%.dts FORCE
 
 $(obj)/dtbs: $(addprefix $(obj)/, $(dtb-y))
 
-clean-files := *.dtb
-
 install:
 	sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"

arch/openrisc/boot/dts/Makefile

@@ -5,6 +5,4 @@ BUILTIN_DTB :=
 endif
 obj-y += $(BUILTIN_DTB)
 
-clean-files := *.dtb.S
-
 #DTC_FLAGS ?= -p 1024

arch/powerpc/boot/Makefile

@@ -439,7 +439,7 @@ zInstall: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
 clean-files += $(image-) $(initrd-) cuImage.* dtbImage.* treeImage.* \
 	zImage zImage.initrd zImage.chrp zImage.coff zImage.holly \
 	zImage.miboot zImage.pmac zImage.pseries \
-	zImage.maple simpleImage.* otheros.bld *.dtb
+	zImage.maple simpleImage.* otheros.bld
 
 # clean up files cached by wrapper
 clean-kernel-base := vmlinux.strip vmlinux.bin

arch/sh/boot/dts/Makefile

@@ -1,3 +1 @@
 obj-$(CONFIG_USE_BUILTIN_DTB) += $(patsubst "%",%,$(CONFIG_BUILTIN_DTB_SOURCE)).dtb.o
-
-clean-files := *.dtb.S

arch/xtensa/boot/dts/Makefile

@@ -16,5 +16,3 @@ dtstree := $(srctree)/$(src)
 dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts))
 
 always += $(dtb-y)
-clean-files += *.dtb *.dtb.S
-