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mediatek: filogic: set eth0 and LAN port MACs on TP-Link BE450

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eth0 (gmac0) is declared label-mac-device, but nothing assigns its MAC,
so it and the DSA lan ports come up with a random locally administered
address that changes every boot. Assign the base MAC from tp_data
default-mac to eth0 and the lan ports, as is already done for eth1 and
eth2.

Each lan port needs its own assignment: a DSA user port copies the
conduit's MAC once when it is created, at driver probe before preinit
runs, and ignores later changes to eth0.

Run-tested on a BE450 on 25.12.5, where the case is identical.
Two boots without the fix each came up with a different
random address; with the fix applied, eth0 and the lan ports get the
label MAC and keep it across reboots.

Signed-off-by: Semih Baskan <strst.gs@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/24180
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
This commit is contained in:
Semih Baskan
2026-07-20 20:28:34 +02:00
committed by Jonas Jelonek
parent e85fa66006
commit 1513da34bb
1 changed files with 4 additions and 0 deletions
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target/linux/mediatek/filogic/base-files/lib/preinit/10_fix_eth_mac.sh
+4
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@@ -37,6 +37,10 @@ preinit_set_mac_address() {
;;
tplink,be450)
addr=$(get_mac_binary "/tmp/tp_data/default-mac" 0)
ip link set dev eth0 address "$addr"
ip link set dev lan1 address "$addr"
ip link set dev lan2 address "$addr"
ip link set dev lan3 address "$addr"
ip link set dev eth1 address "$(macaddr_add $addr 1)"
ip link set dev eth2 address "$(macaddr_add $addr 2)"
;;