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ctc: make use of alloc_netdev() 

Currently ctc-device initialization is broken (kernel bug in
ctc_new_device).
The new network namespace code reveals a deficiency of the
ctc driver. It should make use of alloc_netdev() as described
in Documentation/networking/netdevices.txt.

Signed-off-by: Peter Tiedemann <ptiedem@de.ibm.com>
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Peter Tiedemann 2007-11-29 17:36:27 +01:00 committed by Jeff Garzik
parent 9f74ffdebf
commit 1c14788590
1 changed files with 16 additions and 29 deletions
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45
drivers/s390/net/ctcmain.c
View File

@ -2782,35 +2782,14 @@ ctc_probe_device(struct ccwgroup_device *cgdev)
}
/**
* Initialize everything of the net device except the name and the
* channel structs.
* Device setup function called by alloc_netdev().
*
* @param dev Device to be setup.
*/
static struct net_device *
ctc_init_netdevice(struct net_device * dev, int alloc_device,
struct ctc_priv *privptr)
void ctc_init_netdevice(struct net_device * dev)
{
if (!privptr)
return NULL;
DBF_TEXT(setup, 3, __FUNCTION__);
if (alloc_device) {
dev = kzalloc(sizeof(struct net_device), GFP_KERNEL);
if (!dev)
return NULL;
}
dev->priv = privptr;
privptr->fsm = init_fsm("ctcdev", dev_state_names,
dev_event_names, CTC_NR_DEV_STATES, CTC_NR_DEV_EVENTS,
dev_fsm, DEV_FSM_LEN, GFP_KERNEL);
if (privptr->fsm == NULL) {
if (alloc_device)
kfree(dev);
return NULL;
}
fsm_newstate(privptr->fsm, DEV_STATE_STOPPED);
fsm_settimer(privptr->fsm, &privptr->restart_timer);
if (dev->mtu == 0)
dev->mtu = CTC_BUFSIZE_DEFAULT - LL_HEADER_LENGTH - 2;
dev->hard_start_xmit = ctc_tx;
@ -2823,7 +2802,7 @@ ctc_init_netdevice(struct net_device * dev, int alloc_device,
dev->type = ARPHRD_SLIP;
dev->tx_queue_len = 100;
dev->flags = IFF_POINTOPOINT | IFF_NOARP;
return dev;
SET_MODULE_OWNER(dev);
}
@ -2879,14 +2858,22 @@ ctc_new_device(struct ccwgroup_device *cgdev)
"ccw_device_set_online (cdev[1]) failed with ret = %d\n", ret);
}
dev = ctc_init_netdevice(NULL, 1, privptr);
dev = alloc_netdev(0, "ctc%d", ctc_init_netdevice);
if (!dev) {
ctc_pr_warn("ctc_init_netdevice failed\n");
goto out;
}
dev->priv = privptr;
strlcpy(dev->name, "ctc%d", IFNAMSIZ);
privptr->fsm = init_fsm("ctcdev", dev_state_names,
dev_event_names, CTC_NR_DEV_STATES, CTC_NR_DEV_EVENTS,
dev_fsm, DEV_FSM_LEN, GFP_KERNEL);
if (privptr->fsm == NULL) {
free_netdev(dev);
goto out;
}
fsm_newstate(privptr->fsm, DEV_STATE_STOPPED);
fsm_settimer(privptr->fsm, &privptr->restart_timer);
for (direction = READ; direction <= WRITE; direction++) {
privptr->channel[direction] =