ixgbe: Use the instance of net_device_stats from net_device.

Since net_device has an instance of net_device_stats,
we can remove the instance of this from the private adapter structure.

Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 34 insertions, 33 deletions

diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h
index 28f32da794dd..2b854161c61b 100644
--- a/drivers/net/ixgbe/ixgbe.h
+++ b/drivers/net/ixgbe/ixgbe.h
@@ -340,7 +340,6 @@ struct ixgbe_adapter {
         /* OS defined structs */
         struct net_device *netdev;
         struct pci_dev *pdev;
-        struct net_device_stats net_stats;
 
         u32 test_icr;
         struct ixgbe_ring test_tx_ring;
diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index fa314cb005a4..987b41c8eb48 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -48,11 +48,13 @@ struct ixgbe_stats {
 
 #define IXGBE_STAT(m) sizeof(((struct ixgbe_adapter *)0)->m), \
                              offsetof(struct ixgbe_adapter, m)
+#define IXGBE_NETDEV_STAT(m) sizeof(((struct net_device *)0)->m), \
+                             offsetof(struct net_device, m)
 static struct ixgbe_stats ixgbe_gstrings_stats[] = {
-        {"rx_packets", IXGBE_STAT(net_stats.rx_packets)},
-        {"tx_packets", IXGBE_STAT(net_stats.tx_packets)},
-        {"rx_bytes", IXGBE_STAT(net_stats.rx_bytes)},
-        {"tx_bytes", IXGBE_STAT(net_stats.tx_bytes)},
+        {"rx_packets", IXGBE_NETDEV_STAT(stats.rx_packets)},
+        {"tx_packets", IXGBE_NETDEV_STAT(stats.tx_packets)},
+        {"rx_bytes", IXGBE_NETDEV_STAT(stats.rx_bytes)},
+        {"tx_bytes", IXGBE_NETDEV_STAT(stats.tx_bytes)},
         {"rx_pkts_nic", IXGBE_STAT(stats.gprc)},
         {"tx_pkts_nic", IXGBE_STAT(stats.gptc)},
         {"rx_bytes_nic", IXGBE_STAT(stats.gorc)},
@@ -60,26 +62,26 @@ static struct ixgbe_stats ixgbe_gstrings_stats[] = {
         {"lsc_int", IXGBE_STAT(lsc_int)},
         {"tx_busy", IXGBE_STAT(tx_busy)},
         {"non_eop_descs", IXGBE_STAT(non_eop_descs)},
-        {"rx_errors", IXGBE_STAT(net_stats.rx_errors)},
-        {"tx_errors", IXGBE_STAT(net_stats.tx_errors)},
-        {"rx_dropped", IXGBE_STAT(net_stats.rx_dropped)},
-        {"tx_dropped", IXGBE_STAT(net_stats.tx_dropped)},
-        {"multicast", IXGBE_STAT(net_stats.multicast)},
+        {"rx_errors", IXGBE_NETDEV_STAT(stats.rx_errors)},
+        {"tx_errors", IXGBE_NETDEV_STAT(stats.tx_errors)},
+        {"rx_dropped", IXGBE_NETDEV_STAT(stats.rx_dropped)},
+        {"tx_dropped", IXGBE_NETDEV_STAT(stats.tx_dropped)},
+        {"multicast", IXGBE_NETDEV_STAT(stats.multicast)},
         {"broadcast", IXGBE_STAT(stats.bprc)},
         {"rx_no_buffer_count", IXGBE_STAT(stats.rnbc[0]) },
-        {"collisions", IXGBE_STAT(net_stats.collisions)},
-        {"rx_over_errors", IXGBE_STAT(net_stats.rx_over_errors)},
-        {"rx_crc_errors", IXGBE_STAT(net_stats.rx_crc_errors)},
-        {"rx_frame_errors", IXGBE_STAT(net_stats.rx_frame_errors)},
+        {"collisions", IXGBE_NETDEV_STAT(stats.collisions)},
+        {"rx_over_errors", IXGBE_NETDEV_STAT(stats.rx_over_errors)},
+        {"rx_crc_errors", IXGBE_NETDEV_STAT(stats.rx_crc_errors)},
+        {"rx_frame_errors", IXGBE_NETDEV_STAT(stats.rx_frame_errors)},
         {"hw_rsc_count", IXGBE_STAT(rsc_count)},
         {"fdir_match", IXGBE_STAT(stats.fdirmatch)},
         {"fdir_miss", IXGBE_STAT(stats.fdirmiss)},
-        {"rx_fifo_errors", IXGBE_STAT(net_stats.rx_fifo_errors)},
-        {"rx_missed_errors", IXGBE_STAT(net_stats.rx_missed_errors)},
-        {"tx_aborted_errors", IXGBE_STAT(net_stats.tx_aborted_errors)},
-        {"tx_carrier_errors", IXGBE_STAT(net_stats.tx_carrier_errors)},
-        {"tx_fifo_errors", IXGBE_STAT(net_stats.tx_fifo_errors)},
-        {"tx_heartbeat_errors", IXGBE_STAT(net_stats.tx_heartbeat_errors)},
+        {"rx_fifo_errors", IXGBE_NETDEV_STAT(stats.rx_fifo_errors)},
+        {"rx_missed_errors", IXGBE_NETDEV_STAT(stats.rx_missed_errors)},
+        {"tx_aborted_errors", IXGBE_NETDEV_STAT(stats.tx_aborted_errors)},
+        {"tx_carrier_errors", IXGBE_NETDEV_STAT(stats.tx_carrier_errors)},
+        {"tx_fifo_errors", IXGBE_NETDEV_STAT(stats.tx_fifo_errors)},
+        {"tx_heartbeat_errors", IXGBE_NETDEV_STAT(stats.tx_heartbeat_errors)},
         {"tx_timeout_count", IXGBE_STAT(tx_timeout_count)},
         {"tx_restart_queue", IXGBE_STAT(restart_queue)},
         {"rx_long_length_errors", IXGBE_STAT(stats.roc)},
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index cbb143ca1eb8..c91d50e54427 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -372,8 +372,8 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
         tx_ring->total_packets += total_packets;
         tx_ring->stats.packets += total_packets;
         tx_ring->stats.bytes += total_bytes;
-        adapter->net_stats.tx_bytes += total_bytes;
-        adapter->net_stats.tx_packets += total_packets;
+        netdev->stats.tx_bytes += total_bytes;
+        netdev->stats.tx_packets += total_packets;
         return (count < tx_ring->work_limit);
 }
 
@@ -709,6 +709,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
                                int *work_done, int work_to_do)
 {
         struct ixgbe_adapter *adapter = q_vector->adapter;
+        struct net_device *netdev = adapter->netdev;
         struct pci_dev *pdev = adapter->pdev;
         union ixgbe_adv_rx_desc *rx_desc, *next_rxd;
         struct ixgbe_rx_buffer *rx_buffer_info, *next_buffer;
@@ -880,8 +881,8 @@ next_desc:
 
         rx_ring->total_packets += total_rx_packets;
         rx_ring->total_bytes += total_rx_bytes;
-        adapter->net_stats.rx_bytes += total_rx_bytes;
-        adapter->net_stats.rx_packets += total_rx_packets;
+        netdev->stats.rx_bytes += total_rx_bytes;
+        netdev->stats.rx_packets += total_rx_packets;
 
         return cleaned;
 }
@@ -4403,6 +4404,7 @@ static void ixgbe_shutdown(struct pci_dev *pdev)
  **/
 void ixgbe_update_stats(struct ixgbe_adapter *adapter)
 {
+        struct net_device *netdev = adapter->netdev;
         struct ixgbe_hw *hw = &adapter->hw;
         u64 total_mpc = 0;
         u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot;
@@ -4522,15 +4524,15 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter)
         adapter->stats.bptc += IXGBE_READ_REG(hw, IXGBE_BPTC);
 
         /* Fill out the OS statistics structure */
-        adapter->net_stats.multicast = adapter->stats.mprc;
+        netdev->stats.multicast = adapter->stats.mprc;
 
         /* Rx Errors */
-        adapter->net_stats.rx_errors = adapter->stats.crcerrs +
+        netdev->stats.rx_errors = adapter->stats.crcerrs +
                                        adapter->stats.rlec;
-        adapter->net_stats.rx_dropped = 0;
-        adapter->net_stats.rx_length_errors = adapter->stats.rlec;
-        adapter->net_stats.rx_crc_errors = adapter->stats.crcerrs;
-        adapter->net_stats.rx_missed_errors = total_mpc;
+        netdev->stats.rx_dropped = 0;
+        netdev->stats.rx_length_errors = adapter->stats.rlec;
+        netdev->stats.rx_crc_errors = adapter->stats.crcerrs;
+        netdev->stats.rx_missed_errors = total_mpc;
 }
 
 /**
@@ -5300,10 +5302,8 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb,
  **/
 static struct net_device_stats *ixgbe_get_stats(struct net_device *netdev)
 {
-        struct ixgbe_adapter *adapter = netdev_priv(netdev);
-
         /* only return the current stats */
-        return &adapter->net_stats;
+        return &netdev->stats;
 }
 
 /**