1 files changed, 13 insertions, 2 deletions

diff --git a/kernel/net/core/ethtool.c b/kernel/net/core/ethtool.c
index 1d00b8922..29edf7484 100644
--- a/kernel/net/core/ethtool.c
+++ b/kernel/net/core/ethtool.c
@@ -98,7 +98,6 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN]
 	[NETIF_F_RXALL_BIT] =            "rx-all",
 	[NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload",
 	[NETIF_F_BUSY_POLL_BIT] =        "busy-poll",
-	[NETIF_F_HW_SWITCH_OFFLOAD_BIT] = "hw-switch-offload",
 };
 
 static const char
@@ -107,6 +106,13 @@ rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN] = {
 	[ETH_RSS_HASH_XOR_BIT] =	"xor",
 };
 
+static const char
+tunable_strings[__ETHTOOL_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
+	[ETHTOOL_ID_UNSPEC]     = "Unspec",
+	[ETHTOOL_RX_COPYBREAK]	= "rx-copybreak",
+	[ETHTOOL_TX_COPYBREAK]	= "tx-copybreak",
+};
+
 static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
 {
 	struct ethtool_gfeatures cmd = {
@@ -195,6 +201,9 @@ static int __ethtool_get_sset_count(struct net_device *dev, int sset)
 	if (sset == ETH_SS_RSS_HASH_FUNCS)
 		return ARRAY_SIZE(rss_hash_func_strings);
 
+	if (sset == ETH_SS_TUNABLES)
+		return ARRAY_SIZE(tunable_strings);
+
 	if (ops->get_sset_count && ops->get_strings)
 		return ops->get_sset_count(dev, sset);
 	else
@@ -212,6 +221,8 @@ static void __ethtool_get_strings(struct net_device *dev,
 	else if (stringset == ETH_SS_RSS_HASH_FUNCS)
 		memcpy(data, rss_hash_func_strings,
 		       sizeof(rss_hash_func_strings));
+	else if (stringset == ETH_SS_TUNABLES)
+		memcpy(data, tunable_strings, sizeof(tunable_strings));
 	else
 		/* ops->get_strings is valid because checked earlier */
 		ops->get_strings(dev, stringset, data);
@@ -1273,7 +1284,7 @@ static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
 
 	gstrings.len = ret;
 
-	data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
+	data = kcalloc(gstrings.len, ETH_GSTRING_LEN, GFP_USER);
 	if (!data)
 		return -ENOMEM;