From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Sun, 27 Jun 2010 23:31:34 +0000 (+0000)
Subject: qlcnic: fail when try to setup unsupported features
X-Git-Tag: v2.6.36-rc1~571^2~419
X-Git-Url: http://bbs.cooldavid.org/git/?a=commitdiff_plain;h=deaec0f65b9a9b536bc5951f4908ab1408421ffb;p=net-next-2.6.git

qlcnic: fail when try to setup unsupported features

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/qlcnic/qlcnic_ethtool.c b/drivers/net/qlcnic/qlcnic_ethtool.c
index d4e803e2a97..b9d5acbaf54 100644
--- a/drivers/net/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/qlcnic/qlcnic_ethtool.c
@@ -983,12 +983,19 @@ static int qlcnic_set_flags(struct net_device *netdev, u32 data)
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	int hw_lro;
 
+	if (data & ~ETH_FLAG_LRO)
+		return -EOPNOTSUPP;
+
 	if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO))
 		return -EINVAL;
 
-	ethtool_op_set_flags(netdev, data);
-
-	hw_lro = (data & ETH_FLAG_LRO) ? QLCNIC_LRO_ENABLED : 0;
+	if (data & ETH_FLAG_LRO) {
+		hw_lro = QLCNIC_LRO_ENABLED;
+		netdev->features |= NETIF_F_LRO;
+	} else {
+		hw_lro = 0;
+		netdev->features &= ~NETIF_F_LRO;
+	}
 
 	if (qlcnic_config_hw_lro(adapter, hw_lro))
 		return -EIO;