drivers/net: return operator cleanup

Change "return (EXPR);" to "return EXPR;"

return is not a function, parentheses are not required.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index 25ef8b1..d4ac943 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -401,7 +401,7 @@
 static u32 ixgbe_get_rx_csum(struct net_device *netdev)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
-	return (adapter->flags & IXGBE_FLAG_RX_CSUM_ENABLED);
+	return adapter->flags & IXGBE_FLAG_RX_CSUM_ENABLED;
 }
 
 static int ixgbe_set_rx_csum(struct net_device *netdev, u32 data)
@@ -988,8 +988,8 @@
 	case ETH_SS_STATS:
 		return IXGBE_STATS_LEN;
 	case ETH_SS_NTUPLE_FILTERS:
-		return (ETHTOOL_MAX_NTUPLE_LIST_ENTRY *
-		        ETHTOOL_MAX_NTUPLE_STRING_PER_ENTRY);
+		return ETHTOOL_MAX_NTUPLE_LIST_ENTRY *
+		       ETHTOOL_MAX_NTUPLE_STRING_PER_ENTRY;
 	default:
 		return -EOPNOTSUPP;
 	}