Hi, Updating our mpc8309 board to 5.9, we're starting to get
[ 0.709832] mv88e6085 mdio@e0102120:10: nonfatal error -34 setting MTU on port 0 [ 0.720721] mv88e6085 mdio@e0102120:10: nonfatal error -34 setting MTU on port 1 [ 0.731002] mv88e6085 mdio@e0102120:10: nonfatal error -34 setting MTU on port 2 [ 0.741333] mv88e6085 mdio@e0102120:10: nonfatal error -34 setting MTU on port 3 [ 0.752220] mv88e6085 mdio@e0102120:10: nonfatal error -34 setting MTU on port 4 [ 0.764231] eth1: mtu greater than device maximum [ 0.769022] ucc_geth e0102000.ethernet eth1: error -22 setting MTU to include DSA overhead So it does say "nonfatal", but do we have to live with those warnings on every boot going forward, or is there something that we could do to silence it? It's a mv88e6250 switch with cpu port connected to a ucc_geth interface; the ucc_geth driver indeed does not implement ndo_change_mtu and has ->max_mtu set to the default of 1500. Rasmus
