The RX frame size limit should not be based on the current MTU setting. Instead it should be based on the hardware capabilities. Fixes: c156633f1353 ("Renesas Ethernet AVB driver proper") Signed-off-by: Paul Barker <paul.barker.ct@xxxxxxxxxxxxxx> --- drivers/net/ethernet/renesas/ravb_main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 02cbf850bd85..481c854cb305 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -555,8 +555,10 @@ static void ravb_emac_init_gbeth(struct net_device *ndev) static void ravb_emac_init_rcar(struct net_device *ndev) { + struct ravb_private *priv = netdev_priv(ndev); + /* Receive frame limit set register */ - ravb_write(ndev, ndev->mtu + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN, RFLR); + ravb_write(ndev, priv->info->rx_max_frame_size + ETH_FCS_LEN, RFLR); /* EMAC Mode: PAUSE prohibition; Duplex; RX Checksum; TX; RX */ ravb_write(ndev, ECMR_ZPF | ECMR_DM | -- 2.39.2