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authorStephen Hemminger <shemminger@linux-foundation.org>2007-06-01 12:43:57 -0400
committerJeff Garzik <jeff@garzik.org>2007-06-03 11:44:19 -0400
commitd2d1acdb6a632486be9a731f40c68980c09f0490 (patch)
treef3c4356f6d57985a6b22b074c7d154bdff0809da /net/8021q/vlan.c
parente68a8c10c4c5daf363e946d10c1a5cba77d7f92c (diff)
VLAN: kill_vid is only useful for VLAN filtering devices
The interface for network device VLAN extension was confusing. The kill_vid function is only really useful for devices that do hardware filtering. Devices that only do VLAN receiption without filtering were being forced to provide the hook, and there were bugs in those devices. Many drivers had kill_vid routine that called vlan_group_set_device, with NULL, but that is done already. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'net/8021q/vlan.c')
-rw-r--r--net/8021q/vlan.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index bd93c45778d4..ceef57c9ab32 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -240,10 +240,8 @@ static int unregister_vlan_dev(struct net_device *real_dev,
240 * interlock with HW accelerating devices or SW vlan 240 * interlock with HW accelerating devices or SW vlan
241 * input packet processing. 241 * input packet processing.
242 */ 242 */
243 if (real_dev->features & 243 if (real_dev->features & NETIF_F_HW_VLAN_FILTER)
244 (NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER)) {
245 real_dev->vlan_rx_kill_vid(real_dev, vlan_id); 244 real_dev->vlan_rx_kill_vid(real_dev, vlan_id);
246 }
247 245
248 vlan_group_set_device(grp, vlan_id, NULL); 246 vlan_group_set_device(grp, vlan_id, NULL);
249 synchronize_net(); 247 synchronize_net();
@@ -409,16 +407,14 @@ static struct net_device *register_vlan_device(const char *eth_IF_name,
409 } 407 }
410 408
411 if ((real_dev->features & NETIF_F_HW_VLAN_RX) && 409 if ((real_dev->features & NETIF_F_HW_VLAN_RX) &&
412 (real_dev->vlan_rx_register == NULL || 410 !real_dev->vlan_rx_register) {
413 real_dev->vlan_rx_kill_vid == NULL)) {
414 printk(VLAN_DBG "%s: Device %s has buggy VLAN hw accel.\n", 411 printk(VLAN_DBG "%s: Device %s has buggy VLAN hw accel.\n",
415 __FUNCTION__, real_dev->name); 412 __FUNCTION__, real_dev->name);
416 goto out_put_dev; 413 goto out_put_dev;
417 } 414 }
418 415
419 if ((real_dev->features & NETIF_F_HW_VLAN_FILTER) && 416 if ((real_dev->features & NETIF_F_HW_VLAN_FILTER) &&
420 (real_dev->vlan_rx_add_vid == NULL || 417 (!real_dev->vlan_rx_add_vid || !real_dev->vlan_rx_kill_vid)) {
421 real_dev->vlan_rx_kill_vid == NULL)) {
422 printk(VLAN_DBG "%s: Device %s has buggy VLAN hw accel.\n", 418 printk(VLAN_DBG "%s: Device %s has buggy VLAN hw accel.\n",
423 __FUNCTION__, real_dev->name); 419 __FUNCTION__, real_dev->name);
424 goto out_put_dev; 420 goto out_put_dev;