From 236fcedc51d0b43701081ddde7af39e6a6cce0e7 Mon Sep 17 00:00:00 2001
From: John Crispin <john@phrozen.org>
Date: Fri, 20 Jan 2017 06:39:35 +0100
Subject: [PATCH] Revert "ar71xx: wrt400n: lift size limit on kernel and rootfs
 part"

This reverts commit 78c2ec0f477bab5b5c2622b5a18c14e51dea7249.

The builders were failing with a segfault when generating the image

Signed-off-by: John Crispin <john@phrozen.org>
---
 .../files/arch/mips/ath79/mach-wrt400n.c      | 12 ++++++++--
 target/linux/ar71xx/image/generic.mk          | 22 -------------------
 target/linux/ar71xx/image/legacy-devices.mk   |  5 +++++
 target/linux/ar71xx/image/legacy.mk           | 11 ++++++++++
 4 files changed, 26 insertions(+), 24 deletions(-)

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-wrt400n.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-wrt400n.c
index 64126f495e..6c4c1cb0d6 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-wrt400n.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-wrt400n.c
@@ -48,9 +48,13 @@ static struct mtd_partition wrt400n_partitions[] = {
 		.size		= 0x010000,
 		.mask_flags	= MTD_WRITEABLE,
 	}, {
-		.name		= "firmware",
+		.name		= "linux",
 		.offset		= 0x040000,
-		.size		= 0x770000,
+		.size		= 0x140000,
+	}, {
+		.name		= "rootfs",
+		.offset		= 0x180000,
+		.size		= 0x630000,
 	}, {
 		.name		= "nvram",
 		.offset		= 0x7b0000,
@@ -71,6 +75,10 @@ static struct mtd_partition wrt400n_partitions[] = {
 		.offset		= 0x7f0000,
 		.size		= 0x010000,
 		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "firmware",
+		.offset		= 0x040000,
+		.size		= 0x770000,
 	}
 };
 
diff --git a/target/linux/ar71xx/image/generic.mk b/target/linux/ar71xx/image/generic.mk
index 37ee755ee4..ab64e76d7c 100644
--- a/target/linux/ar71xx/image/generic.mk
+++ b/target/linux/ar71xx/image/generic.mk
@@ -766,25 +766,3 @@ define Device/bhr-4grv2
   IMAGE/factory.bin = append-kernel | pad-to $$$$(KERNEL_SIZE) | append-rootfs | mkbuffaloimg
 endef
 TARGET_DEVICES += bhr-4grv2
-
-
-# factory image starts with a header of size 60 (0x3c) bytes.  The header is
-# only used for checking integrity of the firmware image without being written
-# to flash chip.  That means it's okay we include jffs2 pads when computing
-# checksums
-define Build/wrt400n-factory
-	cp $(IMAGE_ROOTFS) $(IMAGE_ROOTFS).tmp
-	$(STAGING_DIR_HOST)/bin/padjffs2 $(IMAGE_ROOTFS).tmp $(BLOCKSIZE:%k=%)
-	$(STAGING_DIR_HOST)/bin/wrt400n $(IMAGE_KERNEL) $(IMAGE_ROOTFS).tmp $@
-	rm -f $(IMAGE_ROOTFS).tmp
-endef
-
-define Device/wrt400n
-  DEVICE_TITLE := Linksys WRT400N
-  BOARDNAME := WRT400N
-  CONSOLE := ttyS0,115200
-  IMAGES := sysupgrade.bin factory.bin
-  IMAGE/sysupgrade.bin = append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | check-size 0x770000
-  IMAGE/factory.bin = wrt400n-factory | check-size 0x77003c
-endef
-TARGET_DEVICES += wrt400n
diff --git a/target/linux/ar71xx/image/legacy-devices.mk b/target/linux/ar71xx/image/legacy-devices.mk
index f1274a25eb..3f865da43f 100644
--- a/target/linux/ar71xx/image/legacy-devices.mk
+++ b/target/linux/ar71xx/image/legacy-devices.mk
@@ -582,6 +582,11 @@ define LegacyDevice/WLAEAG300N
 endef
 LEGACY_DEVICES += WLAEAG300N
 
+define LegacyDevice/WRT400N
+  DEVICE_TITLE := Linksys WRT400N
+endef
+LEGACY_DEVICES += WRT400N
+
 define LegacyDevice/WZRHPG300NH
   DEVICE_TITLE := Buffalo WZR-HP-G300NH
   DEVICE_PACKAGES := kmod-usb-core kmod-usb2 kmod-usb-ledtrig-usbport
diff --git a/target/linux/ar71xx/image/legacy.mk b/target/linux/ar71xx/image/legacy.mk
index c73f65bbb7..f80b700be8 100644
--- a/target/linux/ar71xx/image/legacy.mk
+++ b/target/linux/ar71xx/image/legacy.mk
@@ -307,6 +307,15 @@ define Image/BuildKernel/Initramfs
 	$(call Image/Build/Initramfs)
 endef
 
+Image/Build/WRT400N/buildkernel=$(call MkuImageLzma,$(2),$(3))
+
+define Image/Build/WRT400N
+	$(call Sysupgrade/KRuImage,$(1),$(2),1310720,6488064)
+	if [ -e "$(call sysupname,$(1),$(2))" ]; then \
+		wrt400n $(KDIR_TMP)/vmlinux-$(2).uImage $(KDIR)/root.$(1) $(call factoryname,$(1),$(2)); \
+	fi
+endef
+
 
 define Image/Build/CameoAP94/buildkernel
 	$(call MkuImageLzma,$(2),$(3) $(4))
@@ -1000,6 +1009,8 @@ $(eval $(call SingleProfile,WHRHPG300N,64kraw,WHRHPG300N,whr-hp-g300n,WHR-HP-G30
 $(eval $(call SingleProfile,WHRHPG300N,64kraw,WHRHPGN,whr-hp-gn,WHR-HP-GN,ttyS0,115200,$$(whrhpg300n_mtdlayout),WHR-HP-GN))
 $(eval $(call SingleProfile,WHRHPG300N,64kraw,WLAEAG300N,wlae-ag300n,WLAE-AG300N,ttyS0,115200,$$(whrhpg300n_mtdlayout),WLAE-AG300N))
 
+$(eval $(call SingleProfile,WRT400N,64k,WRT400N,wrt400n,WRT400N,ttyS0,115200))
+
 $(eval $(call SingleProfile,WZRHP128K,128kraw,WZRHPG300NH,wzr-hp-g300nh,WZR-HP-G300NH,ttyS0,115200,WZR-HP-G300NH))
 $(eval $(call SingleProfile,WZRHP64K,64kraw,WZRHPG300NH2,wzr-hp-g300nh2,WZR-HP-G300NH2,ttyS0,115200,WZR-HP-G300NH2))
 $(eval $(call SingleProfile,WZRHP64K,64kraw,WZRHPAG300H,wzr-hp-ag300h,WZR-HP-AG300H,ttyS0,115200,WZR-HP-AG300H))