Add preinit script to rename network interfaces according to the
label provided in Device Tree.
Fixes: b6d8297510 ("mediatek: mt7622: add Adtran SmartRG SDG-841t6 device")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
--- /dev/null
+set_netdev_labels() {
+ local dir
+ local label
+ local netdev
+
+ for dir in /sys/class/net/*; do
+ [ -r "$dir/of_node/label" ] || continue
+ read -r label < "$dir/of_node/label"
+ netdev="${dir##*/}"
+ [ "$netdev" = "$label" ] && continue
+ ip link set "$netdev" name "$label"
+ done
+}
+
+boot_hook_add preinit_main set_netdev_labels