build_patches/openwrt/0020-mt7621-retain-old-compat_version.patch

@@ -0,0 +1,19 @@
+From: =?UTF-8?q?Fabian=20Bl=C3=A4se?= <fabian@blaese.de>
+Date: Sat, 23 Oct 2021 23:34:07 +0200
+Subject: [PATCH] mt7621: retain old compat_version
+
+diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
+index a3bc14d59d..99887e8192 100644
+--- a/target/linux/ramips/image/mt7621.mk
++++ b/target/linux/ramips/image/mt7621.mk
+@@ -91,8 +91,7 @@ define Build/zytrx-header
+ endef
+ 
+ define Device/dsa-migration
+-  DEVICE_COMPAT_VERSION := 1.1
+-  DEVICE_COMPAT_MESSAGE := Config cannot be migrated from swconfig to DSA
++  DEVICE_COMPAT_VERSION := 1.0
+ endef
+ 
+ define Device/adslr_g7
+

src/packages/fff/fff-support/Makefile

@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=fff-support
-PKG_RELEASE:=8
+PKG_RELEASE:=9
 
 include $(INCLUDE_DIR)/package.mk
 

src/packages/fff/fff-support/files/etc/uci-defaults/20-force-compat_version

@@ -0,0 +1,15 @@
+BOARD="$(uci get board.model.name)"
+
+# bump compat_version to be in sync with OpenWrt's compat_version.
+# This is necessary, because our configuration currently does not require any
+# manual migration. To prevent users from having to force-sysupgrade due to the
+# bumped compat_version upstream, the previous compat_version is retained for
+# a single release of our firmware and is bumped in this script afterwards.
+
+case "$BOARD" in
+	ubnt,edgerouter-x|\
+	ubnt,edgerouter-x-sfp|\
+	netgear,r6220)
+		uci -q set "system.@system[-1].compat_version=1.1"
+		;;
+esac