vmxnet3: fail when try to setup unsupported features

Return EOPNOTSUPP in ethtool_ops->set_flags.

Fix coding style while at it.

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

1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c
index 3935c4493fb..8a71a21d53e 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c
@@ -276,16 +276,21 @@ vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
 }
 
 static u32
-vmxnet3_get_flags(struct net_device *netdev) {
+vmxnet3_get_flags(struct net_device *netdev)
+{
         return netdev->features;
 }
 
 static int
-vmxnet3_set_flags(struct net_device *netdev, u32 data) {
+vmxnet3_set_flags(struct net_device *netdev, u32 data)
+{
         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
         u8 lro_requested = (data & ETH_FLAG_LRO) == 0 ? 0 : 1;
         u8 lro_present = (netdev->features & NETIF_F_LRO) == 0 ? 0 : 1;
 
+        if (data & ~ETH_FLAG_LRO)
+                return -EOPNOTSUPP;
+
         if (lro_requested ^ lro_present) {
                 /* toggle the LRO feature*/
                 netdev->features ^= NETIF_F_LRO;