diff options
| -rw-r--r-- | drivers/net/mctp/mctp-serial.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/mctp/mctp-serial.c b/drivers/net/mctp/mctp-serial.c index 9ac0e187f36e..eaa6fb3224bc 100644 --- a/drivers/net/mctp/mctp-serial.c +++ b/drivers/net/mctp/mctp-serial.c @@ -410,7 +410,14 @@ static const struct net_device_ops mctp_serial_netdev_ops = { static void mctp_serial_setup(struct net_device *ndev) { ndev->type = ARPHRD_MCTP; + + /* we limit at the fixed MTU, which is also the MCTP-standard + * baseline MTU, so is also our minimum + */ ndev->mtu = MCTP_SERIAL_MTU; + ndev->max_mtu = MCTP_SERIAL_MTU; + ndev->min_mtu = MCTP_SERIAL_MTU; + ndev->hard_header_len = 0; ndev->addr_len = 0; ndev->tx_queue_len = DEFAULT_TX_QUEUE_LEN; @@ -432,9 +439,6 @@ static int mctp_serial_open(struct tty_struct *tty) if (!tty->ops->write) return -EOPNOTSUPP; - if (tty->disc_data) - return -EEXIST; - idx = ida_alloc(&mctp_serial_ida, GFP_KERNEL); if (idx < 0) return idx; @@ -479,6 +483,7 @@ static void mctp_serial_close(struct tty_struct *tty) int idx = dev->idx; unregister_netdev(dev->netdev); + cancel_work_sync(&dev->tx_work); ida_free(&mctp_serial_ida, idx); } |