[8139CP]: Fix VLAN unregistration

[8139CP]: Fix VLAN unregistration

[Patrick McHardy]

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Fix 8139cp disabling VLAN completely once the first vid is unregistered.
Compile-tested only since I don't own one of these cards.


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[8139CP]: Fix VLAN unregistration

8139cp disables VLAN completely when the first VID is unregistered. It
should instead disable VLAN when the group is unregistered by calling
cp_vlan_rx_register with grp = NULL.

Signed-off-by: Patrick McHardy <kaber@trash.net>

---
commit b91a2ac4f5a148bfa9778f2bf0e9a46ed3a4aca9
tree bdf13171526857e7a15fdb31db8b58706a10b34f
parent 62d7f463e185a0b65915110d25d8c4c732e67c0a
author Patrick McHardy <kaber@trash.net> Wed, 30 May 2007 09:49:20 +0200
committer Patrick McHardy <kaber@trash.net> Wed, 30 May 2007 09:49:20 +0200

 drivers/net/8139cp.c |   14 +++++---------
 1 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c
index e8c9f27..5cc961e 100644
--- a/drivers/net/8139cp.c
+++ b/drivers/net/8139cp.c
@@ -435,21 +435,17 @@ static void cp_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
 
 	spin_lock_irqsave(&cp->lock, flags);
 	cp->vlgrp = grp;
-	cp->cpcmd |= RxVlanOn;
+	if (grp)
+		cp->cpcmd |= RxVlanOn;
+	else
+		cp->cpcmd &= ~RxVlanOn;
 	cpw16(CpCmd, cp->cpcmd);
 	spin_unlock_irqrestore(&cp->lock, flags);
 }
 
 static void cp_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
 {
-	struct cp_private *cp = netdev_priv(dev);
-	unsigned long flags;
-
-	spin_lock_irqsave(&cp->lock, flags);
-	cp->cpcmd &= ~RxVlanOn;
-	cpw16(CpCmd, cp->cpcmd);
-	vlan_group_set_device(cp->vlgrp, vid, NULL);
-	spin_unlock_irqrestore(&cp->lock, flags);
+	return;
 }
 #endif /* CP_VLAN_TAG_USED */