diff options
| -rw-r--r-- | target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c index 50029ffafe..5913bb6de4 100644 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c +++ b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c @@ -1042,13 +1042,22 @@ static void ag71xx_netpoll(struct net_device *dev) } #endif +static int ag71xx_change_mtu(struct net_device *dev, int new_mtu) +{ + if (new_mtu < 68 || + new_mtu > AG71XX_TX_MTU_LEN - ETH_HLEN - ETH_FCS_LEN) + return -EINVAL; + + dev->mtu = new_mtu; +} + static const struct net_device_ops ag71xx_netdev_ops = { .ndo_open = ag71xx_open, .ndo_stop = ag71xx_stop, .ndo_start_xmit = ag71xx_hard_start_xmit, .ndo_do_ioctl = ag71xx_do_ioctl, .ndo_tx_timeout = ag71xx_tx_timeout, - .ndo_change_mtu = eth_change_mtu, + .ndo_change_mtu = ag71xx_change_mtu, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, #ifdef CONFIG_NET_POLL_CONTROLLER |