From a6b08e88ed5a716b2f27989c949cdfa0704c1dfd Mon Sep 17 00:00:00 2001
From: Breno Leitao <leitao@linux.vnet.ibm.com>
Date: Mon, 20 Dec 2010 09:02:37 +0000
Subject: [PATCH 14/65] ehea: Avoid changing vlan flags

This patch avoids disabling the vlan flags using ethtool.

Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ehea/ehea_ethtool.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/drivers/net/ehea/ehea_ethtool.c b/drivers/net/ehea/ehea_ethtool.c
index 1f37ee6..d6cf502 100644
--- a/drivers/net/ehea/ehea_ethtool.c
+++ b/drivers/net/ehea/ehea_ethtool.c
@@ -263,6 +263,13 @@ static void ehea_get_ethtool_stats(struct net_device *dev,
 
 static int ehea_set_flags(struct net_device *dev, u32 data)
 {
+	/* Avoid changing the VLAN flags */
+	if ((data & (ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN)) !=
+	    (ethtool_op_get_flags(dev) & (ETH_FLAG_RXVLAN |
+					  ETH_FLAG_TXVLAN))){
+		return -EINVAL;
+	}
+
 	return ethtool_op_set_flags(dev, data, ETH_FLAG_LRO
 					| ETH_FLAG_TXVLAN
 					| ETH_FLAG_RXVLAN);
-- 
1.6.6.1

