diff options
| author | Jarod Wilson <jarod@redhat.com> | 2016-10-20 13:55:23 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-10-20 14:51:10 -0400 |
| commit | 46b3ef4cdf6f84c35eeacfd4c19839e0067fcfdd (patch) | |
| tree | 79eaa557da7a7bbb41f04076fcfa16e379d6d07c /drivers/s390/net/netiucv.c | |
| parent | b3e3893e1253692c3d2b8e8ebd5a26183ed30443 (diff) | |
s390/net: use net core MTU range checking
ctcm:
- min_mtu = 576, max_mtu = 65527
netiucv:
- min_mtu = 576, max_mtu = 65535
qeth:
- min_mtu = 64, max_mtu = 65535
CC: netdev@vger.kernel.org
CC: linux-s390@vger.kernel.org
CC: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390/net/netiucv.c')
| -rw-r--r-- | drivers/s390/net/netiucv.c | 24 |
1 files changed, 2 insertions, 22 deletions
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c index 2f0f3918172a..2981024a2438 100644 --- a/drivers/s390/net/netiucv.c +++ b/drivers/s390/net/netiucv.c @@ -1428,27 +1428,6 @@ static struct net_device_stats *netiucv_stats (struct net_device * dev) return &priv->stats; } -/** - * netiucv_change_mtu - * @dev: Pointer to interface struct. - * @new_mtu: The new MTU to use for this interface. - * - * Sets MTU of an interface. - * - * Returns 0 on success, -EINVAL if MTU is out of valid range. - * (valid range is 576 .. NETIUCV_MTU_MAX). - */ -static int netiucv_change_mtu(struct net_device * dev, int new_mtu) -{ - IUCV_DBF_TEXT(trace, 3, __func__); - if (new_mtu < 576 || new_mtu > NETIUCV_MTU_MAX) { - IUCV_DBF_TEXT(setup, 2, "given MTU out of valid range\n"); - return -EINVAL; - } - dev->mtu = new_mtu; - return 0; -} - /* * attributes in sysfs */ @@ -1986,12 +1965,13 @@ static const struct net_device_ops netiucv_netdev_ops = { .ndo_stop = netiucv_close, .ndo_get_stats = netiucv_stats, .ndo_start_xmit = netiucv_tx, - .ndo_change_mtu = netiucv_change_mtu, }; static void netiucv_setup_netdevice(struct net_device *dev) { dev->mtu = NETIUCV_MTU_DEFAULT; + dev->min_mtu = 576; + dev->max_mtu = NETIUCV_MTU_MAX; dev->destructor = netiucv_free_netdevice; dev->hard_header_len = NETIUCV_HDRLEN; dev->addr_len = 0; |