netdev - [PATCH] net/vlan: withdraw VLAN ID attribute from GVRP on VLAN device stop

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Date:	Sun, 25 Mar 2012 18:43:57 -0400
From:	David Ward <david.ward@...mit.edu>
To:	<netdev@...r.kernel.org>
CC:	David Ward <david.ward@...mit.edu>
Subject: [PATCH] net/vlan: withdraw VLAN ID attribute from GVRP on VLAN device stop

When a VLAN device is stopped which has VLAN_FLAG_GVRP set, the VLAN
ID attribute that was previously declared by GVRP must be withdrawn.

Signed-off-by: David Ward <david.ward@...mit.edu>
---
 net/8021q/vlan_dev.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 9988d4a..df86dd0 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -319,6 +319,9 @@ static int vlan_dev_stop(struct net_device *dev)
 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
 	struct net_device *real_dev = vlan->real_dev;
 
+	if (vlan->flags & VLAN_FLAG_GVRP)
+		vlan_gvrp_request_leave(dev);
+
 	dev_mc_unsync(real_dev, dev);
 	dev_uc_unsync(real_dev, dev);
 	if (dev->flags & IFF_ALLMULTI)
-- 
1.7.1

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