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net: use core MTU range checking in WAN drivers

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- set min/max_mtu in all hdlc drivers, remove hdlc_change_mtu
- sent max_mtu in lec driver, remove lec_change_mtu
- set min/max_mtu in x25_asy driver

CC: [email protected]
CC: Krzysztof Halasa <[email protected]>
CC: Krzysztof Halasa <[email protected]>
CC: Jan "Yenya" Kasprzak <[email protected]>
CC: Francois Romieu <[email protected]>
CC: Kevin Curtis <[email protected]>
CC: Zhao Qiang <[email protected]>
Signed-off-by: Jarod Wilson <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Jarod Wilson 2016-10-20 13:55:19 -04:00 • committed by David S. Miller
commit 8b6b4135e4
22 changed files with 7 additions and 42 deletions
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11
net/atm/lec.c
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@ -544,15 +544,6 @@ send_to_lecd(struct lec_priv *priv, atmlec_msg_type type,
return 0;
}
/* shamelessly stolen from drivers/net/net_init.c */
static int lec_change_mtu(struct net_device *dev, int new_mtu)
{
if ((new_mtu < 68) || (new_mtu > 18190))
return -EINVAL;
dev->mtu = new_mtu;
return 0;
}
static void lec_set_multicast_list(struct net_device *dev)
{
/*
@ -565,7 +556,6 @@ static const struct net_device_ops lec_netdev_ops = {
.ndo_open = lec_open,
.ndo_stop = lec_close,
.ndo_start_xmit = lec_start_xmit,
.ndo_change_mtu = lec_change_mtu,
.ndo_tx_timeout = lec_tx_timeout,
.ndo_set_rx_mode = lec_set_multicast_list,
};
@ -742,6 +732,7 @@ static int lecd_attach(struct atm_vcc *vcc, int arg)
if (!dev_lec[i])
return -ENOMEM;
dev_lec[i]->netdev_ops = &lec_netdev_ops;
dev_lec[i]->max_mtu = 18190;
snprintf(dev_lec[i]->name, IFNAMSIZ, "lec%d", i);
if (register_netdev(dev_lec[i])) {
free_netdev(dev_lec[i]);