net: make ndo_get_stats64 a void function

The network device operation for reading statistics is only called
in one place, and it ignores the return value. Having a structure
return value is potentially confusing because some future driver could
incorrectly assume that the return value was used.

Fix all drivers with ndo_get_stats64 to have a void function.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 6 deletions

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 594604e09f8d..7546109d4980 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -137,8 +137,8 @@ static void igb_update_phy_info(unsigned long);
 static void igb_watchdog(unsigned long);
 static void igb_watchdog_task(struct work_struct *);
 static netdev_tx_t igb_xmit_frame(struct sk_buff *skb, struct net_device *);
-static struct rtnl_link_stats64 *igb_get_stats64(struct net_device *dev,
-                                          struct rtnl_link_stats64 *stats);
+static void igb_get_stats64(struct net_device *dev,
+                            struct rtnl_link_stats64 *stats);
 static int igb_change_mtu(struct net_device *, int);
 static int igb_set_mac(struct net_device *, void *);
 static void igb_set_uta(struct igb_adapter *adapter, bool set);
@@ -5404,8 +5404,8 @@ static void igb_reset_task(struct work_struct *work)
  *  @netdev: network interface device structure
  *  @stats: rtnl_link_stats64 pointer
  **/
-static struct rtnl_link_stats64 *igb_get_stats64(struct net_device *netdev,
-                                                struct rtnl_link_stats64 *stats)
+static void igb_get_stats64(struct net_device *netdev,
+                            struct rtnl_link_stats64 *stats)
 {
         struct igb_adapter *adapter = netdev_priv(netdev);
 
@@ -5413,8 +5413,6 @@ static struct rtnl_link_stats64 *igb_get_stats64(struct net_device *netdev,
         igb_update_stats(adapter, &adapter->stats64);
         memcpy(stats, &adapter->stats64, sizeof(*stats));
         spin_unlock(&adapter->stats64_lock);
-
-        return stats;
 }
 
 /**