From f7ad72bfceb95e6607e0f0d7b7dbfb551865610a Mon Sep 17 00:00:00 2001 From: Jarod Wilson Date: Mon, 17 Oct 2016 15:54:11 -0400 Subject: [PATCH] ethernet/dlink: use core min/max MTU checking dl2k: min_mtu 68, max_mtu 1536 or 8000, depending on hardware - Removed change_mtu, does nothing productive anymore sundance: min_mtu 68, max_mtu 8191 CC: netdev@vger.kernel.org CC: Denis Kirjanov Signed-off-by: Jarod Wilson Signed-off-by: David S. Miller --- drivers/net/ethernet/dlink/dl2k.c | 22 ++++------------------ drivers/net/ethernet/dlink/sundance.c | 6 ++++-- 2 files changed, 8 insertions(+), 20 deletions(-) diff --git a/drivers/net/ethernet/dlink/dl2k.c b/drivers/net/ethernet/dlink/dl2k.c index 78f144696d6b..8c95a8a81e3c 100644 --- a/drivers/net/ethernet/dlink/dl2k.c +++ b/drivers/net/ethernet/dlink/dl2k.c @@ -76,7 +76,6 @@ static void rio_free_tx (struct net_device *dev, int irq); static void tx_error (struct net_device *dev, int tx_status); static int receive_packet (struct net_device *dev); static void rio_error (struct net_device *dev, int int_status); -static int change_mtu (struct net_device *dev, int new_mtu); static void set_multicast (struct net_device *dev); static struct net_device_stats *get_stats (struct net_device *dev); static int clear_stats (struct net_device *dev); @@ -106,7 +105,6 @@ static const struct net_device_ops netdev_ops = { .ndo_set_rx_mode = set_multicast, .ndo_do_ioctl = rio_ioctl, .ndo_tx_timeout = rio_tx_timeout, - .ndo_change_mtu = change_mtu, }; static int @@ -230,6 +228,10 @@ rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent) #if 0 dev->features = NETIF_F_IP_CSUM; #endif + /* MTU range: 68 - 1536 or 8000 */ + dev->min_mtu = ETH_MIN_MTU; + dev->max_mtu = np->jumbo ? MAX_JUMBO : PACKET_SIZE; + pci_set_drvdata (pdev, dev); ring_space = pci_alloc_consistent (pdev, TX_TOTAL_SIZE, &ring_dma); @@ -1198,22 +1200,6 @@ clear_stats (struct net_device *dev) return 0; } - -static int -change_mtu (struct net_device *dev, int new_mtu) -{ - struct netdev_private *np = netdev_priv(dev); - int max = (np->jumbo) ? MAX_JUMBO : 1536; - - if ((new_mtu < 68) || (new_mtu > max)) { - return -EINVAL; - } - - dev->mtu = new_mtu; - - return 0; -} - static void set_multicast (struct net_device *dev) { diff --git a/drivers/net/ethernet/dlink/sundance.c b/drivers/net/ethernet/dlink/sundance.c index 79d80090eac8..eab36acfc0d1 100644 --- a/drivers/net/ethernet/dlink/sundance.c +++ b/drivers/net/ethernet/dlink/sundance.c @@ -580,6 +580,10 @@ static int sundance_probe1(struct pci_dev *pdev, dev->ethtool_ops = ðtool_ops; dev->watchdog_timeo = TX_TIMEOUT; + /* MTU range: 68 - 8191 */ + dev->min_mtu = ETH_MIN_MTU; + dev->max_mtu = 8191; + pci_set_drvdata(pdev, dev); i = register_netdev(dev); @@ -713,8 +717,6 @@ err_out_netdev: static int change_mtu(struct net_device *dev, int new_mtu) { - if ((new_mtu < 68) || (new_mtu > 8191)) /* Set by RxDMAFrameLen */ - return -EINVAL; if (netif_running(dev)) return -EBUSY; dev->mtu = new_mtu;