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authorPatrick McHardy <kaber@trash.net>2007-06-13 15:06:29 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-07-11 01:14:58 -0400
commite89fe42cd03c8fd3686df82d8390a235717a66de (patch)
treef5b788a96f44554a90fe1dc1a3c51fa3a8460209 /net/8021q/vlan.c
parentc1d3ee9925ca714a5ed3f8fce01a7027137f4e3f (diff)
[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>
Diffstat (limited to 'net/8021q/vlan.c')
-rw-r--r--net/8021q/vlan.c83
1 files changed, 47 insertions, 36 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 1e33dbb85d14..e68b503f1012 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -447,6 +447,51 @@ static int vlan_check_real_dev(struct net_device *real_dev, unsigned short vlan_
447 return 0; 447 return 0;
448} 448}
449 449
450static int register_vlan_dev(struct net_device *dev)
451{
452 struct vlan_dev_info *vlan = VLAN_DEV_INFO(dev);
453 struct net_device *real_dev = vlan->real_dev;
454 unsigned short vlan_id = vlan->vlan_id;
455 struct vlan_group *grp, *ngrp = NULL;
456 int err;
457
458 grp = __vlan_find_group(real_dev->ifindex);
459 if (!grp) {
460 ngrp = grp = vlan_group_alloc(real_dev->ifindex);
461 if (!grp)
462 return -ENOBUFS;
463 }
464
465 err = register_netdevice(dev);
466 if (err < 0)
467 goto out_free_group;
468
469 /* Account for reference in struct vlan_dev_info */
470 dev_hold(real_dev);
471
472 vlan_transfer_operstate(real_dev, dev);
473 linkwatch_fire_event(dev); /* _MUST_ call rfc2863_policy() */
474
475 /* So, got the sucker initialized, now lets place
476 * it into our local structure.
477 */
478 vlan_group_set_device(grp, vlan_id, dev);
479 if (ngrp && real_dev->features & NETIF_F_HW_VLAN_RX)
480 real_dev->vlan_rx_register(real_dev, ngrp);
481 if (real_dev->features & NETIF_F_HW_VLAN_FILTER)
482 real_dev->vlan_rx_add_vid(real_dev, vlan_id);
483
484 if (vlan_proc_add_dev(dev) < 0)
485 printk(KERN_WARNING "VLAN: failed to add proc entry for %s\n",
486 dev->name);
487 return 0;
488
489out_free_group:
490 if (ngrp)
491 vlan_group_free(ngrp);
492 return err;
493}
494
450/* Attach a VLAN device to a mac address (ie Ethernet Card). 495/* Attach a VLAN device to a mac address (ie Ethernet Card).
451 * Returns the device that was created, or NULL if there was 496 * Returns the device that was created, or NULL if there was
452 * an error of some kind. 497 * an error of some kind.
@@ -454,7 +499,6 @@ static int vlan_check_real_dev(struct net_device *real_dev, unsigned short vlan_
454static struct net_device *register_vlan_device(struct net_device *real_dev, 499static struct net_device *register_vlan_device(struct net_device *real_dev,
455 unsigned short VLAN_ID) 500 unsigned short VLAN_ID)
456{ 501{
457 struct vlan_group *grp, *ngrp = NULL;
458 struct net_device *new_dev; 502 struct net_device *new_dev;
459 char name[IFNAMSIZ]; 503 char name[IFNAMSIZ];
460 504
@@ -522,37 +566,8 @@ static struct net_device *register_vlan_device(struct net_device *real_dev,
522 VLAN_DEV_INFO(new_dev)->dent = NULL; 566 VLAN_DEV_INFO(new_dev)->dent = NULL;
523 VLAN_DEV_INFO(new_dev)->flags = 1; 567 VLAN_DEV_INFO(new_dev)->flags = 1;
524 568
525#ifdef VLAN_DEBUG 569 if (register_vlan_dev(new_dev) < 0)
526 printk(VLAN_DBG "About to go find the group for idx: %i\n", 570 goto out_free_newdev;
527 real_dev->ifindex);
528#endif
529 grp = __vlan_find_group(real_dev->ifindex);
530 if (!grp) {
531 ngrp = grp = vlan_group_alloc(real_dev->ifindex);
532 if (!grp)
533 goto out_free_newdev;
534 }
535
536 if (register_netdevice(new_dev))
537 goto out_free_group;
538
539 vlan_transfer_operstate(real_dev, new_dev);
540 linkwatch_fire_event(new_dev); /* _MUST_ call rfc2863_policy() */
541
542 /* So, got the sucker initialized, now lets place
543 * it into our local structure.
544 */
545 if (ngrp && real_dev->features & NETIF_F_HW_VLAN_RX)
546 real_dev->vlan_rx_register(real_dev, ngrp);
547
548 vlan_group_set_device(grp, VLAN_ID, new_dev);
549
550 if (vlan_proc_add_dev(new_dev)<0)/* create it's proc entry */
551 printk(KERN_WARNING "VLAN: failed to add proc entry for %s\n",
552 new_dev->name);
553
554 if (real_dev->features & NETIF_F_HW_VLAN_FILTER)
555 real_dev->vlan_rx_add_vid(real_dev, VLAN_ID);
556 571
557 /* Account for reference in struct vlan_dev_info */ 572 /* Account for reference in struct vlan_dev_info */
558 dev_hold(real_dev); 573 dev_hold(real_dev);
@@ -561,10 +576,6 @@ static struct net_device *register_vlan_device(struct net_device *real_dev,
561#endif 576#endif
562 return new_dev; 577 return new_dev;
563 578
564out_free_group:
565 if (ngrp)
566 vlan_group_free(ngrp);
567
568out_free_newdev: 579out_free_newdev:
569 free_netdev(new_dev); 580 free_netdev(new_dev);
570 581