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[VLAN]: Move device registation to seperate function 

Move device registration and configuration of the underlying device to a
seperate function.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2007-06-13 12:06:29 -07:00 committed by David S. Miller
parent c1d3ee9925
commit e89fe42cd0
1 changed files with 47 additions and 36 deletions
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83
net/8021q/vlan.c
View File

@ -447,6 +447,51 @@ static int vlan_check_real_dev(struct net_device *real_dev, unsigned short vlan_
return 0;
}
static int register_vlan_dev(struct net_device *dev)
{
struct vlan_dev_info *vlan = VLAN_DEV_INFO(dev);
struct net_device *real_dev = vlan->real_dev;
unsigned short vlan_id = vlan->vlan_id;
struct vlan_group *grp, *ngrp = NULL;
int err;
grp = __vlan_find_group(real_dev->ifindex);
if (!grp) {
ngrp = grp = vlan_group_alloc(real_dev->ifindex);
if (!grp)
return -ENOBUFS;
}
err = register_netdevice(dev);
if (err < 0)
goto out_free_group;
/* Account for reference in struct vlan_dev_info */
dev_hold(real_dev);
vlan_transfer_operstate(real_dev, dev);
linkwatch_fire_event(dev); /* _MUST_ call rfc2863_policy() */
/* So, got the sucker initialized, now lets place
* it into our local structure.
*/
vlan_group_set_device(grp, vlan_id, dev);
if (ngrp && real_dev->features & NETIF_F_HW_VLAN_RX)
real_dev->vlan_rx_register(real_dev, ngrp);
if (real_dev->features & NETIF_F_HW_VLAN_FILTER)
real_dev->vlan_rx_add_vid(real_dev, vlan_id);
if (vlan_proc_add_dev(dev) < 0)
printk(KERN_WARNING "VLAN: failed to add proc entry for %s\n",
dev->name);
return 0;
out_free_group:
if (ngrp)
vlan_group_free(ngrp);
return err;
}
/* Attach a VLAN device to a mac address (ie Ethernet Card).
* Returns the device that was created, or NULL if there was
* an error of some kind.
@ -454,7 +499,6 @@ static int vlan_check_real_dev(struct net_device *real_dev, unsigned short vlan_
static struct net_device *register_vlan_device(struct net_device *real_dev,
unsigned short VLAN_ID)
{
struct vlan_group *grp, *ngrp = NULL;
struct net_device *new_dev;
char name[IFNAMSIZ];
@ -522,37 +566,8 @@ static struct net_device *register_vlan_device(struct net_device *real_dev,
VLAN_DEV_INFO(new_dev)->dent = NULL;
VLAN_DEV_INFO(new_dev)->flags = 1;
#ifdef VLAN_DEBUG
printk(VLAN_DBG "About to go find the group for idx: %i\n",
real_dev->ifindex);
#endif
grp = __vlan_find_group(real_dev->ifindex);
if (!grp) {
ngrp = grp = vlan_group_alloc(real_dev->ifindex);
if (!grp)
goto out_free_newdev;
}
if (register_netdevice(new_dev))
goto out_free_group;
vlan_transfer_operstate(real_dev, new_dev);
linkwatch_fire_event(new_dev); /* _MUST_ call rfc2863_policy() */
/* So, got the sucker initialized, now lets place
* it into our local structure.
*/
if (ngrp && real_dev->features & NETIF_F_HW_VLAN_RX)
real_dev->vlan_rx_register(real_dev, ngrp);
vlan_group_set_device(grp, VLAN_ID, new_dev);
if (vlan_proc_add_dev(new_dev)<0)/* create it's proc entry */
printk(KERN_WARNING "VLAN: failed to add proc entry for %s\n",
new_dev->name);
if (real_dev->features & NETIF_F_HW_VLAN_FILTER)
real_dev->vlan_rx_add_vid(real_dev, VLAN_ID);
if (register_vlan_dev(new_dev) < 0)
goto out_free_newdev;
/* Account for reference in struct vlan_dev_info */
dev_hold(real_dev);
@ -561,10 +576,6 @@ static struct net_device *register_vlan_device(struct net_device *real_dev,
#endif
return new_dev;
out_free_group:
if (ngrp)
vlan_group_free(ngrp);
out_free_newdev:
free_netdev(new_dev);