1 files changed, 18 insertions, 3 deletions

diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 956a9f4971c..17741782a34 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -891,6 +891,20 @@ static int ethtool_nway_reset(struct net_device *dev)
         return dev->ethtool_ops->nway_reset(dev);
 }
 
+static int ethtool_get_link(struct net_device *dev, char __user *useraddr)
+{
+        struct ethtool_value edata = { .cmd = ETHTOOL_GLINK };
+
+        if (!dev->ethtool_ops->get_link)
+                return -EOPNOTSUPP;
+
+        edata.data = netif_running(dev) && dev->ethtool_ops->get_link(dev);
+
+        if (copy_to_user(useraddr, &edata, sizeof(edata)))
+                return -EFAULT;
+        return 0;
+}
+
 static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
 {
         struct ethtool_eeprom eeprom;
@@ -1171,7 +1185,9 @@ static int ethtool_set_ufo(struct net_device *dev, char __user *useraddr)
                 return -EFAULT;
         if (edata.data && !(dev->features & NETIF_F_SG))
                 return -EINVAL;
-        if (edata.data && !(dev->features & NETIF_F_HW_CSUM))
+        if (edata.data && !((dev->features & NETIF_F_GEN_CSUM) ||
+                (dev->features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))
+                        == (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM)))
                 return -EINVAL;
         return dev->ethtool_ops->set_ufo(dev, edata.data);
 }
@@ -1528,8 +1544,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
                 rc = ethtool_nway_reset(dev);
                 break;
         case ETHTOOL_GLINK:
-                rc = ethtool_get_value(dev, useraddr, ethcmd,
-                                       dev->ethtool_ops->get_link);
+                rc = ethtool_get_link(dev, useraddr);
                 break;
         case ETHTOOL_GEEPROM:
                 rc = ethtool_get_eeprom(dev, useraddr);