diff --git a/target/linux/ath79/image/common-netgear.mk b/target/linux/ath79/image/common-netgear.mk
index 8311222a91..8fa6b030fc 100644
--- a/target/linux/ath79/image/common-netgear.mk
+++ b/target/linux/ath79/image/common-netgear.mk
@@ -37,6 +37,8 @@ define Device/netgear_ath79
   DEVICE_VENDOR := NETGEAR
   KERNEL := kernel-bin | append-dtb | lzma -d20 | netgear-uImage lzma
   IMAGES += factory.img
-  IMAGE/sysupgrade.bin := $$(IMAGE/default) | append-metadata | check-size $$$$(IMAGE_SIZE)
-  IMAGE/factory.img := $$(IMAGE/default) | netgear-dni | check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := $$(IMAGE/default) | append-metadata | \
+	check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.img := $$(IMAGE/default) | netgear-dni | \
+	check-size $$$$(IMAGE_SIZE)
 endef
diff --git a/target/linux/ath79/image/common-tp-link.mk b/target/linux/ath79/image/common-tp-link.mk
index bda81a3e2b..0dc58191a8 100644
--- a/target/linux/ath79/image/common-tp-link.mk
+++ b/target/linux/ath79/image/common-tp-link.mk
@@ -1,4 +1,5 @@
-DEVICE_VARS += TPLINK_HWID TPLINK_HWREV TPLINK_FLASHLAYOUT TPLINK_HEADER_VERSION TPLINK_BOARD_NAME TPLINK_BOARD_ID
+DEVICE_VARS += TPLINK_HWID TPLINK_HWREV TPLINK_FLASHLAYOUT TPLINK_HEADER_VERSION
+DEVICE_VARS += TPLINK_BOARD_NAME TPLINK_BOARD_ID
 
 define rootfs_align
 $(patsubst %-256k,0x40000,$(patsubst %-128k,0x20000,$(patsubst %-64k,0x10000,$(patsubst squashfs%,0x4,$(patsubst root.%,%,$(1))))))
@@ -14,12 +15,9 @@ endef
 # -X reserve <size> bytes in the firmware image (hexval prefixed with 0x)
 define Build/mktplinkfw
 	-$(STAGING_DIR_HOST)/bin/mktplinkfw \
-		-H $(TPLINK_HWID) -W $(TPLINK_HWREV) -F $(TPLINK_FLASHLAYOUT) -N OpenWrt -V $(REVISION) \
-		-m $(TPLINK_HEADER_VERSION) \
-		-k $(IMAGE_KERNEL) \
-		-r $@ \
-		-o $@.new \
-		-j -X 0x40000 \
+		-H $(TPLINK_HWID) -W $(TPLINK_HWREV) -F $(TPLINK_FLASHLAYOUT) \
+		-N OpenWrt -V $(REVISION) -m $(TPLINK_HEADER_VERSION) \
+		-k $(IMAGE_KERNEL) -r $@ -o $@.new -j -X 0x40000 \
 		-a $(call rootfs_align,$(FILESYSTEM)) \
 		$(wordlist 2,$(words $(1)),$(1)) \
 		$(if $(findstring sysupgrade,$(word 1,$(1))),-s) && mv $@.new $@ || rm -f $@
@@ -30,19 +28,16 @@ endef
 # -c combined image
 define Build/mktplinkfw-combined
 	$(STAGING_DIR_HOST)/bin/mktplinkfw \
-		-H $(TPLINK_HWID) -W $(TPLINK_HWREV) -F $(TPLINK_FLASHLAYOUT) -N OpenWrt -V $(REVISION) $(1) \
-		-m $(TPLINK_HEADER_VERSION) \
-		-k $@ \
-		-o $@.new \
-		-s -S \
-		-c
+		-H $(TPLINK_HWID) -W $(TPLINK_HWREV) -F $(TPLINK_FLASHLAYOUT) \
+		-N OpenWrt -V $(REVISION) $(1) -m $(TPLINK_HEADER_VERSION) \
+		-k $@ -o $@.new -s -S -c
 	@mv $@.new $@
 endef
 
 define Build/uImageArcher
 	mkimage -A $(LINUX_KARCH) \
-		-O linux -T kernel \
-		-C $(1) -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
+		-O linux -T kernel -C $(1) -a $(KERNEL_LOADADDR) \
+		-e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
 		-n '$(call toupper,$(LINUX_KARCH)) OpenWrt Linux-$(LINUX_VERSION)' -d $@ $@.new
 	@mv $@.new $@
 endef
@@ -55,7 +50,8 @@ define Device/tplink
   KERNEL := kernel-bin | append-dtb | lzma
   KERNEL_INITRAMFS := kernel-bin | append-dtb | lzma | tplink-v1-header
   IMAGES += factory.bin
-  IMAGE/sysupgrade.bin := append-rootfs | mktplinkfw sysupgrade | append-metadata
+  IMAGE/sysupgrade.bin := append-rootfs | mktplinkfw sysupgrade | \
+	append-metadata
   IMAGE/factory.bin := append-rootfs | mktplinkfw factory
 endef
 
@@ -64,7 +60,8 @@ define Device/tplink-nolzma
   LOADER_FLASH_OFFS := 0x22000
   COMPILE := loader-$(1).gz
   COMPILE/loader-$(1).gz := loader-okli-compile
-  KERNEL := kernel-bin | append-dtb | lzma | uImage lzma -M 0x4f4b4c49 | loader-okli $(1) 7680
+  KERNEL := kernel-bin | append-dtb | lzma | uImage lzma -M 0x4f4b4c49 | \
+	loader-okli $(1) 7680
   KERNEL_INITRAMFS := kernel-bin | append-dtb | gzip | tplink-v1-header
 endef
 
@@ -117,5 +114,6 @@ define Device/tplink-loader-okli
   LOADER_FLASH_OFFS := 0x43000
   COMPILE := loader-$(1).elf
   COMPILE/loader-$(1).elf := loader-okli-compile
-  KERNEL := kernel-bin | append-dtb | lzma | uImage lzma -M 0x4f4b4c49 | loader-okli $(1) 12288
+  KERNEL := kernel-bin | append-dtb | lzma | uImage lzma -M 0x4f4b4c49 | \
+	loader-okli $(1) 12288
 endef
diff --git a/target/linux/ath79/image/generic-tp-link.mk b/target/linux/ath79/image/generic-tp-link.mk
index c43927e19b..260e5a37c4 100644
--- a/target/linux/ath79/image/generic-tp-link.mk
+++ b/target/linux/ath79/image/generic-tp-link.mk
@@ -6,7 +6,8 @@ define Device/tplink_archer-a7-v5
   IMAGE_SIZE := 15104k
   DEVICE_MODEL := Archer A7
   DEVICE_VARIANT := v5
-  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct ath10k-firmware-qca988x-ct
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct \
+	ath10k-firmware-qca988x-ct
   TPLINK_BOARD_ID := ARCHER-A7-V5
   BOARDNAME := ARCHER-A7-V5
   SUPPORTED_DEVICES += archer-a7-v5
@@ -41,7 +42,8 @@ define Device/tplink_archer-c5-v1
   ATH_SOC := qca9558
   DEVICE_MODEL := Archer C5
   DEVICE_VARIANT := v1
-  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct ath10k-firmware-qca988x-ct
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct \
+	ath10k-firmware-qca988x-ct
   TPLINK_HWID := 0xc5000001
   SUPPORTED_DEVICES += archer-c5
 endef
@@ -66,7 +68,8 @@ define Device/tplink_archer-c59-v1
   DEVICE_MODEL := Archer C59
   DEVICE_VARIANT := v1
   TPLINK_BOARD_ID := ARCHER-C59-V1
-  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct ath10k-firmware-qca9888-ct
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct \
+	ath10k-firmware-qca9888-ct
   SUPPORTED_DEVICES += archer-c59-v1
 endef
 TARGET_DEVICES += tplink_archer-c59-v1
@@ -78,7 +81,8 @@ define Device/tplink_archer-c59-v2
   DEVICE_MODEL := Archer C59
   DEVICE_VARIANT := v2
   TPLINK_BOARD_ID := ARCHER-C59-V2
-  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct ath10k-firmware-qca9888-ct
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct \
+	ath10k-firmware-qca9888-ct
   SUPPORTED_DEVICES += archer-c59-v2
 endef
 TARGET_DEVICES += tplink_archer-c59-v2
@@ -148,7 +152,8 @@ define Device/tplink_archer-c7-v2
   ATH_SOC := qca9558
   DEVICE_MODEL := Archer C7
   DEVICE_VARIANT := v2
-  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct ath10k-firmware-qca988x-ct
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct \
+	ath10k-firmware-qca988x-ct
   TPLINK_HWID := 0xc7000002
   SUPPORTED_DEVICES += archer-c7
   IMAGES += factory-us.bin factory-eu.bin
@@ -163,7 +168,8 @@ define Device/tplink_archer-c7-v4
   IMAGE_SIZE := 15104k
   DEVICE_MODEL := Archer C7
   DEVICE_VARIANT := v4
-  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct ath10k-firmware-qca988x-ct
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct \
+	ath10k-firmware-qca988x-ct
   TPLINK_BOARD_ID := ARCHER-C7-V4
   BOARDNAME := ARCHER-C7-V4
   SUPPORTED_DEVICES += archer-c7-v4
@@ -176,7 +182,8 @@ define Device/tplink_archer-c7-v5
   IMAGE_SIZE := 15360k
   DEVICE_MODEL := Archer C7
   DEVICE_VARIANT := v5
-  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct ath10k-firmware-qca988x-ct
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct \
+	ath10k-firmware-qca988x-ct
   TPLINK_BOARD_ID := ARCHER-C7-V5
   BOARDNAME := ARCHER-C7-V5
   SUPPORTED_DEVICES += archer-c7-v5
@@ -188,7 +195,8 @@ define Device/tplink_archer-d50-v1
   DEVICE_VENDOR := TP-Link
   DEVICE_MODEL := Archer D50
   DEVICE_VARIANT := v1
-  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct ath10k-firmware-qca988x-ct
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct \
+	ath10k-firmware-qca988x-ct
   BOARDNAME := ARCHER-D50-V1
   IMAGE_SIZE := 7808k
   TPLINK_HWID := 0xC1200001
@@ -198,10 +206,10 @@ define Device/tplink_archer-d50-v1
   TPLINK_HVERSION := 3
   KERNEL := kernel-bin | append-dtb | lzma
   KERNEL_INITRAMFS := kernel-bin | append-dtb | lzma | \
-        tplink-v2-header -s -V "ver. 1.0"
+	tplink-v2-header -s -V "ver. 1.0"
   IMAGES := sysupgrade.bin
-  IMAGE/sysupgrade.bin := tplink-v2-image -s -V "ver. 2.0" | \
-        append-metadata | check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := tplink-v2-image -s -V "ver. 2.0" | append-metadata | \
+	check-size $$$$(IMAGE_SIZE)
 endef
 TARGET_DEVICES += tplink_archer-d50-v1
 
@@ -495,7 +503,7 @@ define Device/tplink_tl-wr2543-v1
   DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport
   TPLINK_HWID := 0x25430001
   IMAGE/sysupgrade.bin := append-rootfs | mktplinkfw sysupgrade -v 3.13.99 | \
-    append-metadata | check-size $$$$(IMAGE_SIZE)
+	append-metadata | check-size $$$$(IMAGE_SIZE)
   IMAGE/factory.bin := append-rootfs | mktplinkfw factory -v 3.13.99
   SUPPORTED_DEVICES += tl-wr2543-v1
 endef
@@ -568,8 +576,8 @@ define Device/tplink_tl-wr902ac-v1
   ATH_SOC := qca9531
   DEVICE_MODEL := TL-WR902AC
   DEVICE_VARIANT := v1
-  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport \
-    kmod-ath10k-ct ath10k-firmware-qca9887-ct -swconfig -uboot-envtools
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct \
+	ath10k-firmware-qca9887-ct -swconfig -uboot-envtools
   TPLINK_BOARD_ID := TL-WR902AC-V1
   IMAGE_SIZE := 7360k
   TPLINK_HWID := 0x0
diff --git a/target/linux/ath79/image/generic-ubnt.mk b/target/linux/ath79/image/generic-ubnt.mk
index 59c22b8af4..6deff781f7 100644
--- a/target/linux/ath79/image/generic-ubnt.mk
+++ b/target/linux/ath79/image/generic-ubnt.mk
@@ -8,11 +8,9 @@ UBNT_REVISION := $(VERSION_DIST)-$(REVISION)
 # mkubntimage is using the kernel image direct
 # routerboard creates partitions out of the ubnt header
 define Build/mkubntimage
-	-$(STAGING_DIR_HOST)/bin/mkfwimage \
-		-B $(UBNT_BOARD) -v $(UBNT_TYPE).$(UBNT_CHIP).v6.0.0-$(VERSION_DIST)-$(REVISION) \
-		-k $(IMAGE_KERNEL) \
-		-r $@ \
-		-o $@
+	-$(STAGING_DIR_HOST)/bin/mkfwimage -B $(UBNT_BOARD) \
+		-v $(UBNT_TYPE).$(UBNT_CHIP).v6.0.0-$(VERSION_DIST)-$(REVISION) \
+		-k $(IMAGE_KERNEL) -r $@ -o $@
 endef
 
 # all UBNT XM/WA devices expect the kernel image to have 1024k while flash, when
@@ -21,11 +19,9 @@ define Build/mkubntimage-split
 	-[ -f $@ ] && ( \
 	dd if=$@ of=$@.old1 bs=1024k count=1; \
 	dd if=$@ of=$@.old2 bs=1024k skip=1; \
-	$(STAGING_DIR_HOST)/bin/mkfwimage \
-		-B $(UBNT_BOARD) -v $(UBNT_TYPE).$(UBNT_CHIP).v$(UBNT_VERSION)-$(UBNT_REVISION) \
-		-k $@.old1 \
-		-r $@.old2 \
-		-o $@; \
+	$(STAGING_DIR_HOST)/bin/mkfwimage -B $(UBNT_BOARD) \
+		-v $(UBNT_TYPE).$(UBNT_CHIP).v$(UBNT_VERSION)-$(UBNT_REVISION) \
+		-k $@.old1 -r $@.old2 -o $@; \
 	rm $@.old1 $@.old2 )
 endef
 
@@ -184,12 +180,14 @@ endef
 TARGET_DEVICES += ubnt_rocket-m
 
 define Device/ubnt_routerstation_common
-  DEVICE_PACKAGES := -kmod-ath9k -wpad-mini -uboot-envtools kmod-usb-ohci kmod-usb2 fconfig
+  DEVICE_PACKAGES := -kmod-ath9k -wpad-mini -uboot-envtools kmod-usb-ohci \
+	kmod-usb2 fconfig
   DEVICE_VENDOR := Ubiquiti
   ATH_SOC := ar7161
   IMAGE_SIZE := 16128k
   IMAGES := factory.bin
-  IMAGE/factory.bin := append-rootfs | pad-rootfs | mkubntimage | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.bin := append-rootfs | pad-rootfs | mkubntimage | \
+	check-size $$$$(IMAGE_SIZE)
   KERNEL := kernel-bin | append-dtb | lzma | pad-to $$(BLOCKSIZE)
   KERNEL_INITRAMFS := kernel-bin | append-dtb
 endef
diff --git a/target/linux/ath79/image/generic.mk b/target/linux/ath79/image/generic.mk
index 865126549a..aa30c7c762 100644
--- a/target/linux/ath79/image/generic.mk
+++ b/target/linux/ath79/image/generic.mk
@@ -82,10 +82,10 @@ define Device/seama
   # - 28 bytes seama_header
   # - 36 bytes of META data (4-bytes aligned)
   IMAGE/default := append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | append-rootfs
-  IMAGE/sysupgrade.bin := \
-	$$(IMAGE/default) | seama | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
-  IMAGE/factory.bin := \
-	$$(IMAGE/default) | pad-rootfs -x 64 | seama | seama-seal | check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := $$(IMAGE/default) | seama | pad-rootfs | \
+	append-metadata | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.bin := $$(IMAGE/default) | pad-rootfs -x 64 | seama | \
+	seama-seal | check-size $$$$(IMAGE_SIZE)
   SEAMA_SIGNATURE :=
 endef
 
@@ -110,7 +110,8 @@ define Device/adtran_bsap1880
   IMAGES += kernel.bin rootfs.bin
   IMAGE/kernel.bin := append-kernel
   IMAGE/rootfs.bin := append-rootfs | pad-rootfs
-  IMAGE/sysupgrade.bin := append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE) | sysupgrade-tar rootfs=$$$$@ | append-metadata
+  IMAGE/sysupgrade.bin := append-rootfs | pad-rootfs | \
+	check-size $$$$(IMAGE_SIZE) | sysupgrade-tar rootfs=$$$$@ | append-metadata
 endef
 
 define Device/adtran_bsap1800-v2
@@ -153,8 +154,8 @@ define Device/avm_fritz300e
   KERNEL_INITRAMFS := $$(KERNEL)
   IMAGE_SIZE := 15232k
   IMAGE/sysupgrade.bin := append-kernel | pad-to 64k | \
-	append-squashfs-fakeroot-be | pad-to 256 | \
-	append-rootfs | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
+	append-squashfs-fakeroot-be | pad-to 256 | append-rootfs | pad-rootfs | \
+	append-metadata | check-size $$$$(IMAGE_SIZE)
   DEVICE_PACKAGES := fritz-tffs rssileds -swconfig
 endef
 TARGET_DEVICES += avm_fritz300e
@@ -167,8 +168,8 @@ define Device/avm_fritz4020
   KERNEL := kernel-bin | append-dtb | lzma | eva-image
   KERNEL_INITRAMFS := $$(KERNEL)
   IMAGE/sysupgrade.bin := append-kernel | pad-to 64k | \
-      append-squashfs-fakeroot-be | pad-to 256 | \
-      append-rootfs | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
+	append-squashfs-fakeroot-be | pad-to 256 | append-rootfs | pad-rootfs | \
+	append-metadata | check-size $$$$(IMAGE_SIZE)
   DEVICE_PACKAGES := fritz-tffs
   SUPPORTED_DEVICES += fritz4020
 endef
@@ -181,8 +182,10 @@ define Device/buffalo_bhr-4grv
   DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport
   IMAGE_SIZE := 32256k
   IMAGES += factory.bin tftp.bin
-  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE)
-  IMAGE/factory.bin := $$(IMAGE/default) | buffalo-enc BHR-4GRV 1.99 | buffalo-tag BHR-4GRV 3
+  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | \
+	pad-rootfs | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.bin := $$(IMAGE/default) | buffalo-enc BHR-4GRV 1.99 | \
+	buffalo-tag BHR-4GRV 3
   IMAGE/tftp.bin := $$(IMAGE/default) | buffalo-tftp-header
   SUPPORTED_DEVICES += wzr-hp-g450h
 endef
@@ -202,10 +205,13 @@ define Device/buffalo_wzr-hp-ag300h
   DEVICE_MODEL := WZR-HP-AG300H
   IMAGE_SIZE := 32320k
   IMAGES += factory.bin tftp.bin
-  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE)
-  IMAGE/factory.bin := $$(IMAGE/default) | buffalo-enc WZR-HP-AG300H 1.99 | buffalo-tag WZR-HP-AG300H 3
+  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | \
+	pad-rootfs | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.bin := $$(IMAGE/default) | buffalo-enc WZR-HP-AG300H 1.99 | \
+	buffalo-tag WZR-HP-AG300H 3
   IMAGE/tftp.bin := $$(IMAGE/default) | buffalo-tftp-header
-  DEVICE_PACKAGES := kmod-usb-ohci kmod-usb2 kmod-usb-ledtrig-usbport kmod-leds-reset kmod-owl-loader
+  DEVICE_PACKAGES := kmod-usb-ohci kmod-usb2 kmod-usb-ledtrig-usbport \
+	kmod-leds-reset kmod-owl-loader
   SUPPORTED_DEVICES += wzr-hp-ag300h
 endef
 TARGET_DEVICES += buffalo_wzr-hp-ag300h
@@ -218,8 +224,10 @@ define Device/buffalo_wzr-hp-g302h-a1a0
   DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport
   IMAGE_SIZE := 32128k
   IMAGES += factory.bin tftp.bin
-  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE)
-  IMAGE/factory.bin := $$(IMAGE/default) | buffalo-enc WZR-HP-G302H 1.99 | buffalo-tag WZR-HP-G302H 4
+  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | \
+	pad-rootfs | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.bin := $$(IMAGE/default) | buffalo-enc WZR-HP-G302H 1.99 | \
+	buffalo-tag WZR-HP-G302H 4
   IMAGE/tftp.bin := $$(IMAGE/default) | buffalo-tftp-header
   SUPPORTED_DEVICES += wzr-hp-g300nh2
 endef
@@ -232,8 +240,10 @@ define Device/buffalo_wzr-hp-g450h
   DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport
   IMAGE_SIZE := 32256k
   IMAGES += factory.bin tftp.bin
-  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE)
-  IMAGE/factory.bin := $$(IMAGE/default) | buffalo-enc WZR-HP-G450H 1.99 | buffalo-tag WZR-HP-G450H 3
+  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | \
+	pad-rootfs | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.bin := $$(IMAGE/default) | buffalo-enc WZR-HP-G450H 1.99 | \
+	buffalo-tag WZR-HP-G450H 3
   IMAGE/tftp.bin := $$(IMAGE/default) | buffalo-tftp-header
   SUPPORTED_DEVICES += wzr-hp-g450h
 endef
@@ -263,8 +273,8 @@ define Device/comfast_cf-e313ac
   ATH_SOC := qca9531
   DEVICE_VENDOR := COMFAST
   DEVICE_MODEL := CF-E313AC
-  DEVICE_PACKAGES := rssileds kmod-leds-gpio kmod-ath10k-ct ath10k-firmware-qca9888-ct \
-	-swconfig -uboot-envtools
+  DEVICE_PACKAGES := rssileds kmod-leds-gpio kmod-ath10k-ct \
+	ath10k-firmware-qca9888-ct -swconfig -uboot-envtools
   IMAGE_SIZE := 7936k
 endef
 TARGET_DEVICES += comfast_cf-e313ac
@@ -369,8 +379,10 @@ define Device/dlink_dir-825-b1
   DEVICE_MODEL := DIR-825
   DEVICE_VARIANT := B1
   IMAGE_SIZE := 6208k
-  IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
-  DEVICE_PACKAGES := kmod-usb-ohci kmod-usb2 kmod-usb-ledtrig-usbport kmod-leds-reset kmod-owl-loader
+  IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | \
+	append-metadata | check-size $$$$(IMAGE_SIZE)
+  DEVICE_PACKAGES := kmod-usb-ohci kmod-usb2 kmod-usb-ledtrig-usbport \
+	kmod-leds-reset kmod-owl-loader
   SUPPORTED_DEVICES += dir-825-b1
 endef
 TARGET_DEVICES += dlink_dir-825-b1
@@ -380,14 +392,17 @@ define Device/dlink_dir-825-c1
   DEVICE_VENDOR := D-Link
   DEVICE_MODEL := DIR-825
   DEVICE_VARIANT := C1
-  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-leds-reset kmod-owl-loader
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-leds-reset \
+	kmod-owl-loader
   SUPPORTED_DEVICES += dir-825-c1
   IMAGE_SIZE := 15936k
   IMAGES := factory.bin sysupgrade.bin
-  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs
+  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | \
+	pad-rootfs
   IMAGE/factory.bin := $$(IMAGE/default) | pad-offset $$$$(IMAGE_SIZE) 26 | \
 	append-string 00DB120AR9344-RT-101214-00 | check-size $$$$(IMAGE_SIZE)
-  IMAGE/sysupgrade.bin := $$(IMAGE/default) | append-metadata | check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := $$(IMAGE/default) | append-metadata | \
+	check-size $$$$(IMAGE_SIZE)
 endef
 TARGET_DEVICES += dlink_dir-825-c1
 
@@ -400,10 +415,12 @@ define Device/dlink_dir-835-a1
   SUPPORTED_DEVICES += dir-835-a1
   IMAGE_SIZE := 15936k
   IMAGES := factory.bin sysupgrade.bin
-  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs
+  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | \
+	pad-rootfs
   IMAGE/factory.bin := $$(IMAGE/default) | pad-offset $$$$(IMAGE_SIZE) 26 | \
 	append-string 00DB120AR9344-RT-101214-00 | check-size $$$$(IMAGE_SIZE)
-  IMAGE/sysupgrade.bin := $$(IMAGE/default) | append-metadata | check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := $$(IMAGE/default) | append-metadata | \
+	check-size $$$$(IMAGE_SIZE)
 endef
 TARGET_DEVICES += dlink_dir-835-a1
 
@@ -419,11 +436,12 @@ define Device/dlink_dir-842-c
   # 64 bytes offset:
   # - 28 bytes seama_header
   # - 36 bytes of META data (4-bytes aligned)
-  IMAGE/default := append-kernel | uImage lzma | pad-offset $$$$(BLOCKSIZE) 64 | append-rootfs
-  IMAGE/sysupgrade.bin := \
-	$$(IMAGE/default) | seama | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
-  IMAGE/factory.bin := \
-	$$(IMAGE/default) | pad-rootfs -x 64 | seama | seama-seal | check-size $$$$(IMAGE_SIZE)
+  IMAGE/default := append-kernel | uImage lzma | \
+	pad-offset $$$$(BLOCKSIZE) 64 | append-rootfs
+  IMAGE/sysupgrade.bin := $$(IMAGE/default) | seama | pad-rootfs | \
+	append-metadata | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.bin := $$(IMAGE/default) | pad-rootfs -x 64 | seama | \
+	seama-seal | check-size $$$$(IMAGE_SIZE)
   IMAGE_SIZE := 15680k
 endef
 
@@ -498,9 +516,10 @@ define Device/engenius_ecb1750
   DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca988x-ct
   IMAGE_SIZE := 15680k
   IMAGE/factory.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | \
-    append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE) | \
-    senao-header -r 0x101 -p 0x6d -t 2
-  IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
+	append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE) | \
+	senao-header -r 0x101 -p 0x6d -t 2
+  IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | \
+	append-metadata | check-size $$$$(IMAGE_SIZE)
 endef
 TARGET_DEVICES += engenius_ecb1750
 
@@ -532,7 +551,7 @@ define Device/etactica_eg200
   DEVICE_VENDOR := eTactica
   DEVICE_MODEL := EG200
   DEVICE_PACKAGES := kmod-usb-chipidea2 kmod-ledtrig-oneshot \
-	kmod-usb-serial kmod-usb-serial-ftdi kmod-usb-storage  kmod-fs-ext4
+	kmod-usb-serial kmod-usb-serial-ftdi kmod-usb-storage kmod-fs-ext4
   IMAGE_SIZE := 16000k
   SUPPORTED_DEVICES += rme-eg200
 endef
@@ -604,8 +623,8 @@ define Device/iodata_wn-ac1167dgr
   IMAGE_SIZE := 14656k
   IMAGES += factory.bin
   IMAGE/factory.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | \
-    append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE) | \
-    senao-header -r 0x30a -p 0x61 -t 2
+	append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE) | \
+	senao-header -r 0x30a -p 0x61 -t 2
   DEVICE_PACKAGES := kmod-usb2 kmod-ath10k-ct ath10k-firmware-qca988x-ct
 endef
 TARGET_DEVICES += iodata_wn-ac1167dgr
@@ -617,8 +636,8 @@ define Device/iodata_wn-ac1600dgr
   IMAGE_SIZE := 14656k
   IMAGES += factory.bin
   IMAGE/factory.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | \
-    append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE) | \
-    senao-header -r 0x30a -p 0x60 -t 2 -v 200
+	append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE) | \
+	senao-header -r 0x30a -p 0x60 -t 2 -v 200
   DEVICE_PACKAGES := kmod-usb2 kmod-ath10k-ct ath10k-firmware-qca988x-ct
 endef
 TARGET_DEVICES += iodata_wn-ac1600dgr
@@ -629,10 +648,9 @@ define Device/iodata_wn-ac1600dgr2
   DEVICE_MODEL := WN-AC1600DGR2/DGR3
   IMAGE_SIZE := 14656k
   IMAGES += dgr2-dgr3-factory.bin
-  IMAGE/dgr2-dgr3-factory.bin := \
-    append-kernel | pad-to $$$$(BLOCKSIZE) | \
-    append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE) | \
-    senao-header -r 0x30a -p 0x60 -t 2 -v 200
+  IMAGE/dgr2-dgr3-factory.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | \
+	append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE) | \
+	senao-header -r 0x30a -p 0x60 -t 2 -v 200
   DEVICE_PACKAGES := kmod-usb2 kmod-ath10k-ct ath10k-firmware-qca988x-ct
 endef
 TARGET_DEVICES += iodata_wn-ac1600dgr2
@@ -644,8 +662,8 @@ define Device/iodata_wn-ag300dgr
   IMAGE_SIZE := 15424k
   IMAGES += factory.bin
   IMAGE/factory.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | \
-    append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE) | \
-    senao-header -r 0x30a -p 0x47 -t 2
+	append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE) | \
+	senao-header -r 0x30a -p 0x47 -t 2
   DEVICE_PACKAGES := kmod-usb2
 endef
 TARGET_DEVICES += iodata_wn-ag300dgr
@@ -683,13 +701,11 @@ define Device/nec_wg1200cr
   SEAMA_MTDBLOCK := 6
   SEAMA_SIGNATURE := wrgac72_necpf.2016gui_wg1200cr
   IMAGES += factory.bin
-  IMAGE/default := \
-    append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | append-rootfs
-  IMAGE/sysupgrade.bin := \
-    $$(IMAGE/default) | seama | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
-  IMAGE/factory.bin := \
-    $$(IMAGE/default) | pad-rootfs -x 64 | seama | seama-seal | nec-enc 9gsiy9nzep452pad | \
-    check-size $$$$(IMAGE_SIZE)
+  IMAGE/default := append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | append-rootfs
+  IMAGE/sysupgrade.bin := $$(IMAGE/default) | seama | pad-rootfs | \
+	append-metadata | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.bin := $$(IMAGE/default) | pad-rootfs -x 64 | seama | \
+	seama-seal | nec-enc 9gsiy9nzep452pad | check-size $$$$(IMAGE_SIZE)
   DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca9888-ct
 endef
 TARGET_DEVICES += nec_wg1200cr
@@ -701,9 +717,8 @@ define Device/nec_wg800hp
   IMAGE_SIZE := 7104k
   IMAGES += factory.bin
   IMAGE/factory.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | \
-    append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE) | \
-    xor-image -p 6A57190601121E4C004C1E1201061957 -x | \
-    nec-fw LASER_ATERM
+	append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE) | \
+	xor-image -p 6A57190601121E4C004C1E1201061957 -x | nec-fw LASER_ATERM
   DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca9887-ct-htt
 endef
 TARGET_DEVICES += nec_wg800hp
@@ -714,7 +729,8 @@ define Device/netgear_ex6400_ex7300
   NETGEAR_BOARD_ID := EX7300series
   NETGEAR_HW_ID := 29765104+16+0+128
   IMAGE_SIZE := 15552k
-  IMAGE/default := append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | netgear-rootfs | pad-rootfs
+  IMAGE/default := append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | \
+	netgear-rootfs | pad-rootfs
   DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca99x0-ct
   $(Device/netgear_ath79)
 endef
@@ -733,8 +749,10 @@ TARGET_DEVICES += netgear_ex7300
 
 define Device/netgear_wndr3x00
   ATH_SOC := ar7161
-  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | netgear-squashfs | append-rootfs | pad-rootfs
-  DEVICE_PACKAGES := kmod-usb-ohci kmod-usb2 kmod-usb-ledtrig-usbport kmod-leds-reset kmod-owl-loader
+  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | netgear-squashfs | \
+	append-rootfs | pad-rootfs
+  DEVICE_PACKAGES := kmod-usb-ohci kmod-usb2 kmod-usb-ledtrig-usbport \
+	kmod-leds-reset kmod-owl-loader
   $(Device/netgear_ath79)
 endef
 
@@ -746,7 +764,8 @@ define Device/netgear_wndr3700
   NETGEAR_BOARD_ID := WNDR3700
   IMAGE_SIZE := 7680k
   IMAGES += factory-NA.img
-  IMAGE/factory-NA.img := $$(IMAGE/default) | netgear-dni NA | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory-NA.img := $$(IMAGE/default) | netgear-dni NA | \
+	check-size $$$$(IMAGE_SIZE)
   SUPPORTED_DEVICES += wndr3700
 endef
 TARGET_DEVICES += netgear_wndr3700
@@ -826,7 +845,8 @@ define Device/ocedo_koala
   DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca988x-ct
   SUPPORTED_DEVICES += koala
   IMAGE_SIZE := 7424k
-  IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | \
+	append-metadata | check-size $$$$(IMAGE_SIZE)
 endef
 TARGET_DEVICES += ocedo_koala
 
@@ -835,7 +855,8 @@ define Device/ocedo_raccoon
   DEVICE_VENDOR := Ocedo
   DEVICE_MODEL := Raccoon
   IMAGE_SIZE := 7424k
-  IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | \
+	append-metadata | check-size $$$$(IMAGE_SIZE)
 endef
 TARGET_DEVICES += ocedo_raccoon
 
@@ -845,7 +866,8 @@ define Device/ocedo_ursus
   DEVICE_MODEL := Ursus
   DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca988x-ct
   IMAGE_SIZE := 7424k
-  IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | \
+	append-metadata | check-size $$$$(IMAGE_SIZE)
 endef
 TARGET_DEVICES += ocedo_ursus
 
@@ -893,7 +915,8 @@ define Device/phicomm_k2t
   DEVICE_VENDOR := Phicomm
   DEVICE_MODEL := K2T
   IMAGE_SIZE := 15744k
-  IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | \
+	append-metadata | check-size $$$$(IMAGE_SIZE)
   DEVICE_PACKAGES := kmod-leds-reset kmod-ath10k-ct ath10k-firmware-qca9888-ct
 endef
 TARGET_DEVICES += phicomm_k2t
@@ -918,7 +941,8 @@ define Device/pisen_wmb001n
   LOADER_FLASH_OFFS := 0x20000
   COMPILE := loader-$(1).bin loader-$(1).uImage
   COMPILE/loader-$(1).bin := loader-okli-compile
-  COMPILE/loader-$(1).uImage := append-loader-okli $(1) | pad-to 64k | lzma | uImage lzma
+  COMPILE/loader-$(1).uImage := append-loader-okli $(1) | pad-to 64k | lzma | \
+	uImage lzma
   KERNEL := kernel-bin | append-dtb | lzma | uImage lzma -M 0x4f4b4c49
   IMAGES += factory.bin
   IMAGE/factory.bin := $$(IMAGE/sysupgrade.bin) | pisen_wmb001n-factory $(1)
@@ -940,7 +964,8 @@ define Device/qihoo_c301
   ATH_SOC := ar9344
   DEVICE_VENDOR := Qihoo
   DEVICE_MODEL := C301
-  DEVICE_PACKAGES := kmod-usb2 kmod-ath10k-ct ath10k-firmware-qca988x-ct uboot-envtools
+  DEVICE_PACKAGES := kmod-usb2 kmod-ath10k-ct ath10k-firmware-qca988x-ct \
+	uboot-envtools
   IMAGE_SIZE := 15744k
   SEAMA_SIGNATURE := wrgac26_qihoo360_360rg
   SUPPORTED_DEVICES += qihoo-c301
@@ -979,10 +1004,12 @@ define Device/trendnet_tew-823dru
   SUPPORTED_DEVICES += tew-823dru
   IMAGE_SIZE := 15296k
   IMAGES := factory.bin sysupgrade.bin
-  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs
+  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | \
+	pad-rootfs
   IMAGE/factory.bin := $$(IMAGE/default) | pad-offset $$$$(IMAGE_SIZE) 26 | \
 	append-string 00AP135AR9558-RT-131129-00 | check-size $$$$(IMAGE_SIZE)
-  IMAGE/sysupgrade.bin := $$(IMAGE/default) | append-metadata | check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := $$(IMAGE/default) | append-metadata | \
+	check-size $$$$(IMAGE_SIZE)
 endef
 TARGET_DEVICES += trendnet_tew-823dru
 
@@ -1017,7 +1044,8 @@ define Device/winchannel_wb2000
   DEVICE_VENDOR := Winchannel
   DEVICE_MODEL := WB2000
   IMAGE_SIZE := 15872k
-  DEVICE_PACKAGES := kmod-i2c-core kmod-i2c-gpio kmod-rtc-ds1307 kmod-usb2 kmod-usb-ledtrig-usbport
+  DEVICE_PACKAGES := kmod-i2c-core kmod-i2c-gpio kmod-rtc-ds1307 kmod-usb2 \
+	kmod-usb-ledtrig-usbport
 endef
 TARGET_DEVICES += winchannel_wb2000
 
@@ -1068,6 +1096,6 @@ define Device/zbtlink_zbt-wd323
   DEVICE_MODEL := WD323
   IMAGE_SIZE := 16000k
   DEVICE_PACKAGES := kmod-usb2 kmod-i2c-core kmod-i2c-gpio kmod-rtc-pcf8563 \
-		     kmod-usb-serial kmod-usb-serial-cp210x uqmi
+	kmod-usb-serial kmod-usb-serial-cp210x uqmi
 endef
 TARGET_DEVICES += zbtlink_zbt-wd323
diff --git a/target/linux/ath79/image/nand.mk b/target/linux/ath79/image/nand.mk
index 19c2d42142..50cf6831cc 100644
--- a/target/linux/ath79/image/nand.mk
+++ b/target/linux/ath79/image/nand.mk
@@ -40,7 +40,8 @@ define Device/aerohive_hiveap-121
   UBINIZE_OPTS := -E 5
   SUPPORTED_DEVICES += hiveap-121
   IMAGES += factory.bin
-  IMAGE/factory.bin := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.bin := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | \
+	check-size $$$$(IMAGE_SIZE)
   IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
 endef
 TARGET_DEVICES += aerohive_hiveap-121
@@ -79,8 +80,8 @@ define Device/glinet_gl-ar750s-common
   ATH_SOC := qca9563
   DEVICE_VENDOR := GL.iNet
   DEVICE_MODEL := GL-AR750S
-  DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca9887-ct \
-			kmod-usb2 kmod-usb-storage block-mount
+  DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca9887-ct kmod-usb2 \
+	kmod-usb-storage block-mount
   KERNEL_SIZE := 4096k
   IMAGE_SIZE := 16000k
   PAGESIZE := 2048
@@ -115,13 +116,15 @@ define Device/netgear_ath79_nand
   PAGESIZE := 2048
   IMAGE_SIZE := 25600k
   KERNEL := kernel-bin | append-dtb | lzma -d20 | \
-	pad-offset $$(KERNEL_SIZE) 129 | \
-	netgear-uImage lzma | append-string -e '\xff' | \
+	pad-offset $$(KERNEL_SIZE) 129 | netgear-uImage lzma | \
+	append-string -e '\xff' | \
 	append-uImage-fakehdr filesystem $$(NETGEAR_KERNEL_MAGIC)
   KERNEL_INITRAMFS := kernel-bin | append-dtb | lzma -d20 | netgear-uImage lzma
   IMAGES := sysupgrade.bin factory.img
-  IMAGE/factory.img := append-kernel | append-ubi | netgear-dni | check-size $$$$(IMAGE_SIZE)
-  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.img := append-kernel | append-ubi | netgear-dni | \
+	check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata | \
+	check-size $$$$(IMAGE_SIZE)
   UBINIZE_OPTS := -E 5
 endef
 
@@ -152,19 +155,23 @@ define Device/zyxel_nbg6716
   ATH_SOC := qca9558
   DEVICE_VENDOR := ZyXEL
   DEVICE_MODEL := NBG6716
-  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct ath10k-firmware-qca988x-ct
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct \
+	ath10k-firmware-qca988x-ct
   RAS_BOARD := NBG6716
   RAS_ROOTFS_SIZE := 29696k
   RAS_VERSION := "OpenWrt Linux-$(LINUX_VERSION)"
   KERNEL_SIZE := 4096k
   BLOCKSIZE := 128k
   PAGESIZE := 2048
-  KERNEL := kernel-bin | append-dtb | uImage none | \
-	zyxel-buildkerneljffs | check-size 4096k
+  KERNEL := kernel-bin | append-dtb | uImage none | zyxel-buildkerneljffs | \
+	check-size 4096k
   IMAGES := sysupgrade.tar sysupgrade-4M-Kernel.bin factory.bin
-  IMAGE/sysupgrade.tar/squashfs := append-rootfs | pad-to $$$$(BLOCKSIZE) | sysupgrade-tar rootfs=$$$$@ | append-metadata
-  IMAGE/sysupgrade-4M-Kernel.bin/squashfs := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | pad-to 263192576 | gzip
-  IMAGE/factory.bin := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | zyxel-factory
+  IMAGE/sysupgrade.tar/squashfs := append-rootfs | pad-to $$$$(BLOCKSIZE) | \
+	sysupgrade-tar rootfs=$$$$@ | append-metadata
+  IMAGE/sysupgrade-4M-Kernel.bin/squashfs := append-kernel | \
+	pad-to $$$$(KERNEL_SIZE) | append-ubi | pad-to 263192576 | gzip
+  IMAGE/factory.bin := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | \
+	zyxel-factory
   UBINIZE_OPTS := -E 5
 endef
 TARGET_DEVICES += zyxel_nbg6716
diff --git a/target/linux/ath79/image/tiny-netgear.mk b/target/linux/ath79/image/tiny-netgear.mk
index d257ddd0ec..a65468522d 100644
--- a/target/linux/ath79/image/tiny-netgear.mk
+++ b/target/linux/ath79/image/tiny-netgear.mk
@@ -5,7 +5,8 @@ define Device/netgear_ar7240
   NETGEAR_KERNEL_MAGIC := 0x32303631
   KERNEL_INITRAMFS := kernel-bin | append-dtb | lzma -d20 | netgear-uImage lzma
   IMAGE_SIZE := 3712k
-  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | netgear-squashfs | append-rootfs | pad-rootfs
+  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | netgear-squashfs | \
+	append-rootfs | pad-rootfs
   $(Device/netgear_ath79)
 endef
 
@@ -36,7 +37,8 @@ define Device/netgear_wnr1000-v2
   NETGEAR_BOARD_ID := WNR1000V2
   NETGEAR_HW_ID := 29763331+4+32
   IMAGE_SIZE := 3712k
-  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | netgear-squashfs | append-rootfs | pad-rootfs
+  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | netgear-squashfs | \
+	append-rootfs | pad-rootfs
   SUPPORTED_DEVICES += wnr1000-v2
   $(Device/netgear_ath79)
 endef
@@ -50,9 +52,11 @@ define Device/netgear_wnr2000-v3
   NETGEAR_BOARD_ID := WNR2000V3
   NETGEAR_HW_ID := 29763551+04+32
   IMAGE_SIZE := 3712k
-  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | netgear-squashfs | append-rootfs | pad-rootfs
+  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | netgear-squashfs | \
+	append-rootfs | pad-rootfs
   IMAGES += factory-NA.img
-  IMAGE/factory-NA.img := $$(IMAGE/default) | netgear-dni NA | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory-NA.img := $$(IMAGE/default) | netgear-dni NA | \
+	check-size $$$$(IMAGE_SIZE)
   SUPPORTED_DEVICES += wnr2000-v3
   $(Device/netgear_ath79)
 endef
diff --git a/target/linux/ath79/image/tiny.mk b/target/linux/ath79/image/tiny.mk
index 5f6adeac86..039925e019 100644
--- a/target/linux/ath79/image/tiny.mk
+++ b/target/linux/ath79/image/tiny.mk
@@ -6,8 +6,10 @@ define Device/buffalo_whr-g301n
   DEVICE_MODEL := WHR-G301N
   IMAGE_SIZE := 3712k
   IMAGES += factory.bin tftp.bin
-  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE)
-  IMAGE/factory.bin := $$(IMAGE/default) | buffalo-enc WHR-G301N 1.99 | buffalo-tag WHR-G301N 3
+  IMAGE/default := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | \
+	pad-rootfs | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.bin := $$(IMAGE/default) | buffalo-enc WHR-G301N 1.99 | \
+	buffalo-tag WHR-G301N 3
   IMAGE/tftp.bin := $$(IMAGE/default) | buffalo-tftp-header
   SUPPORTED_DEVICES += whr-g301n
 endef
@@ -22,9 +24,11 @@ define Device/dlink_dir-615-e4
   FACTORY_IMAGE_SIZE := 3456k
   IMAGES += factory.bin
   IMAGE/default := append-kernel | append-rootfs | pad-rootfs
-  IMAGE/sysupgrade.bin := $$(IMAGE/default) | append-metadata | check-size $$$$(IMAGE_SIZE)
-  IMAGE/factory.bin := $$(IMAGE/default) | check-size $$$$(FACTORY_IMAGE_SIZE) | \
-    pad-to $$$$(FACTORY_IMAGE_SIZE) | append-string "AP99-AR7240-RT-091105-05"
+  IMAGE/sysupgrade.bin := $$(IMAGE/default) | append-metadata | \
+	check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.bin := $$(IMAGE/default) | \
+	check-size $$$$(FACTORY_IMAGE_SIZE) | pad-to $$$$(FACTORY_IMAGE_SIZE) | \
+	append-string "AP99-AR7240-RT-091105-05"
   SUPPORTED_DEVICES += dir-615-e4
 endef
 TARGET_DEVICES += dlink_dir-615-e4