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net: use core MTU range checking in WAN drivers 

- 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: netdev@vger.kernel.org
CC: Krzysztof Halasa <khc@pm.waw.pl>
CC: Krzysztof Halasa <khalasa@piap.pl>
CC: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
CC: Francois Romieu <romieu@fr.zoreil.com>
CC: Kevin Curtis <kevin.curtis@farsite.co.uk>
CC: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jarod Wilson 2016-10-20 13:55:19 -04:00 committed by David S. Miller
parent 9c22b4a34e
commit 8b6b4135e4
22 changed files with 7 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/char/pcmcia/synclink_cs.c
View File

@ -4248,7 +4248,6 @@ static void hdlcdev_rx(MGSLPC_INFO *info, char *buf, int size)
static const struct net_device_ops hdlcdev_ops = {
.ndo_open = hdlcdev_open,
.ndo_stop = hdlcdev_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = hdlcdev_ioctl,
.ndo_tx_timeout = hdlcdev_tx_timeout,

1
drivers/net/wan/c101.c
View File

@ -302,7 +302,6 @@ static void c101_destroy_card(card_t *card)
static const struct net_device_ops c101_ops = {
.ndo_open = c101_open,
.ndo_stop = c101_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = c101_ioctl,
};

1
drivers/net/wan/cosa.c
View File

@ -432,7 +432,6 @@ module_exit(cosa_exit);
static const struct net_device_ops cosa_ops = {
.ndo_open = cosa_net_open,
.ndo_stop = cosa_net_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = cosa_net_ioctl,
.ndo_tx_timeout = cosa_net_timeout,

1
drivers/net/wan/dscc4.c
View File

@ -887,7 +887,6 @@ static inline int dscc4_set_quartz(struct dscc4_dev_priv *dpriv, int hz)
static const struct net_device_ops dscc4_ops = {
.ndo_open = dscc4_open,
.ndo_stop = dscc4_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = dscc4_ioctl,
.ndo_tx_timeout = dscc4_tx_timeout,

1
drivers/net/wan/farsync.c
View File

@ -2394,7 +2394,6 @@ fst_init_card(struct fst_card_info *card)
static const struct net_device_ops fst_ops = {
.ndo_open = fst_open,
.ndo_stop = fst_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = fst_ioctl,
.ndo_tx_timeout = fst_tx_timeout,

1
drivers/net/wan/fsl_ucc_hdlc.c
View File

@ -992,7 +992,6 @@ static const struct dev_pm_ops uhdlc_pm_ops = {
static const struct net_device_ops uhdlc_ops = {
.ndo_open = uhdlc_open,
.ndo_stop = uhdlc_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = uhdlc_ioctl,
};

11
drivers/net/wan/hdlc.c
View File

@ -46,14 +46,6 @@ static const char* version = "HDLC support module revision 1.22";
static struct hdlc_proto *first_proto;
int hdlc_change_mtu(struct net_device *dev, int new_mtu)
{
if ((new_mtu < 68) || (new_mtu > HDLC_MAX_MTU))
return -EINVAL;
dev->mtu = new_mtu;
return 0;
}
static int hdlc_rcv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *p, struct net_device *orig_dev)
{
@ -237,6 +229,8 @@ static void hdlc_setup_dev(struct net_device *dev)
dev->flags = IFF_POINTOPOINT | IFF_NOARP;
dev->priv_flags = IFF_WAN_HDLC;
dev->mtu = HDLC_MAX_MTU;
dev->min_mtu = 68;
dev->max_mtu = HDLC_MAX_MTU;
dev->type = ARPHRD_RAWHDLC;
dev->hard_header_len = 16;
dev->addr_len = 0;
@ -353,7 +347,6 @@ MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>");
MODULE_DESCRIPTION("HDLC support module");
MODULE_LICENSE("GPL v2");
EXPORT_SYMBOL(hdlc_change_mtu);
EXPORT_SYMBOL(hdlc_start_xmit);
EXPORT_SYMBOL(hdlc_open);
EXPORT_SYMBOL(hdlc_close);

3
drivers/net/wan/hdlc_fr.c
View File

@ -1053,7 +1053,6 @@ static void pvc_setup(struct net_device *dev)
static const struct net_device_ops pvc_ops = {
.ndo_open = pvc_open,
.ndo_stop = pvc_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = pvc_xmit,
.ndo_do_ioctl = pvc_ioctl,
};
@ -1096,6 +1095,8 @@ static int fr_add_pvc(struct net_device *frad, unsigned int dlci, int type)
}
dev->netdev_ops = &pvc_ops;
dev->mtu = HDLC_MAX_MTU;
dev->min_mtu = 68;
dev->max_mtu = HDLC_MAX_MTU;
dev->priv_flags |= IFF_NO_QUEUE;
dev->ml_priv = pvc;

1
drivers/net/wan/hostess_sv11.c
View File

@ -180,7 +180,6 @@ static int hostess_attach(struct net_device *dev, unsigned short encoding,
static const struct net_device_ops hostess_ops = {
.ndo_open = hostess_open,
.ndo_stop = hostess_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = hostess_ioctl,
};

1
drivers/net/wan/ixp4xx_hss.c
View File

@ -1321,7 +1321,6 @@ static int hss_hdlc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
static const struct net_device_ops hss_hdlc_ops = {
.ndo_open = hss_hdlc_open,
.ndo_stop = hss_hdlc_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = hss_hdlc_ioctl,
};

1
drivers/net/wan/lmc/lmc_main.c
View File

@ -808,7 +808,6 @@ static int lmc_attach(struct net_device *dev, unsigned short encoding,
static const struct net_device_ops lmc_ops = {
.ndo_open = lmc_open,
.ndo_stop = lmc_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = lmc_ioctl,
.ndo_tx_timeout = lmc_driver_timeout,

1
drivers/net/wan/n2.c
View File

@ -330,7 +330,6 @@ static void n2_destroy_card(card_t *card)
static const struct net_device_ops n2_ops = {
.ndo_open = n2_open,
.ndo_stop = n2_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = n2_ioctl,
};

1
drivers/net/wan/pc300too.c
View File

@ -291,7 +291,6 @@ static void pc300_pci_remove_one(struct pci_dev *pdev)
static const struct net_device_ops pc300_ops = {
.ndo_open = pc300_open,
.ndo_stop = pc300_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = pc300_ioctl,
};

1
drivers/net/wan/pci200syn.c
View File

@ -270,7 +270,6 @@ static void pci200_pci_remove_one(struct pci_dev *pdev)
static const struct net_device_ops pci200_ops = {
.ndo_open = pci200_open,
.ndo_stop = pci200_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = pci200_ioctl,
};

1
drivers/net/wan/sealevel.c
View File

@ -174,7 +174,6 @@ static int sealevel_attach(struct net_device *dev, unsigned short encoding,
static const struct net_device_ops sealevel_ops = {
.ndo_open = sealevel_open,
.ndo_stop = sealevel_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = sealevel_ioctl,
};

1
drivers/net/wan/wanxl.c
View File

@ -551,7 +551,6 @@ static void wanxl_pci_remove_one(struct pci_dev *pdev)
static const struct net_device_ops wanxl_ops = {
.ndo_open = wanxl_open,
.ndo_stop = wanxl_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = wanxl_ioctl,
.ndo_get_stats = wanxl_get_stats,

5
drivers/net/wan/x25_asy.c
View File

@ -124,9 +124,6 @@ static int x25_asy_change_mtu(struct net_device *dev, int newmtu)
unsigned char *xbuff, *rbuff;
int len;
if (newmtu > 65534)
return -EINVAL;
len = 2 * newmtu;
xbuff = kmalloc(len + 4, GFP_ATOMIC);
rbuff = kmalloc(len + 4, GFP_ATOMIC);
@ -751,6 +748,8 @@ static void x25_asy_setup(struct net_device *dev)
*/
dev->mtu = SL_MTU;
dev->min_mtu = 0;
dev->max_mtu = 65534;
dev->netdev_ops = &x25_asy_netdev_ops;
dev->watchdog_timeo = HZ*20;
dev->hard_header_len = 0;

1
drivers/tty/synclink.c
View File

@ -7973,7 +7973,6 @@ static void hdlcdev_rx(struct mgsl_struct *info, char *buf, int size)
static const struct net_device_ops hdlcdev_ops = {
.ndo_open = hdlcdev_open,
.ndo_stop = hdlcdev_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = hdlcdev_ioctl,
.ndo_tx_timeout = hdlcdev_tx_timeout,

1
drivers/tty/synclink_gt.c
View File

@ -1768,7 +1768,6 @@ static void hdlcdev_rx(struct slgt_info *info, char *buf, int size)
static const struct net_device_ops hdlcdev_ops = {
.ndo_open = hdlcdev_open,
.ndo_stop = hdlcdev_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = hdlcdev_ioctl,
.ndo_tx_timeout = hdlcdev_tx_timeout,

1
drivers/tty/synclinkmp.c
View File

@ -1887,7 +1887,6 @@ static void hdlcdev_rx(SLMP_INFO *info, char *buf, int size)
static const struct net_device_ops hdlcdev_ops = {
.ndo_open = hdlcdev_open,
.ndo_stop = hdlcdev_close,
.ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
.ndo_do_ioctl = hdlcdev_ioctl,
.ndo_tx_timeout = hdlcdev_tx_timeout,

2
include/linux/hdlc.h
View File

@ -93,8 +93,6 @@ static __inline__ void debug_frame(const struct sk_buff *skb)
int hdlc_open(struct net_device *dev);
/* Must be called by hardware driver when HDLC device is being closed */
void hdlc_close(struct net_device *dev);
/* May be used by hardware driver */
int hdlc_change_mtu(struct net_device *dev, int new_mtu);
/* Must be pointed to by hw driver's dev->netdev_ops->ndo_start_xmit */
netdev_tx_t hdlc_start_xmit(struct sk_buff *skb, struct net_device *dev);

11
net/atm/lec.c
View File

@ -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]);