fm10k: reduce duplicate fm10k_stat macro code

Share some of the code for setting up fm10k_stat macros by implementing
an FM10K_STAT_FIELDS macro which we can use when setting up the type
specific macros.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c

@@ -11,12 +11,17 @@ struct fm10k_stats {
 	int stat_offset;
 };
 
-#define FM10K_NETDEV_STAT(_net_stat) { \
-	.stat_string = #_net_stat, \
-	.sizeof_stat = FIELD_SIZEOF(struct net_device_stats, _net_stat), \
-	.stat_offset = offsetof(struct net_device_stats, _net_stat) \
+#define FM10K_STAT_FIELDS(_type, _name, _stat) { \
+	.stat_string = _name, \
+	.sizeof_stat = FIELD_SIZEOF(_type, _stat), \
+	.stat_offset = offsetof(_type, _stat) \
 }
 
+/* netdevice statistics */
+#define FM10K_NETDEV_STAT(_net_stat) \
+	FM10K_STAT_FIELDS(struct net_device_stats, __stringify(_net_stat), \
+			  _net_stat)
+
 static const struct fm10k_stats fm10k_gstrings_net_stats[] = {
 	FM10K_NETDEV_STAT(tx_packets),
 	FM10K_NETDEV_STAT(tx_bytes),
@@ -34,11 +39,9 @@ static const struct fm10k_stats fm10k_gstrings_net_stats[] = {
 
 #define FM10K_NETDEV_STATS_LEN	ARRAY_SIZE(fm10k_gstrings_net_stats)
 
-#define FM10K_STAT(_name, _stat) { \
-	.stat_string = _name, \
-	.sizeof_stat = FIELD_SIZEOF(struct fm10k_intfc, _stat), \
-	.stat_offset = offsetof(struct fm10k_intfc, _stat) \
-}
+/* General interface statistics */
+#define FM10K_STAT(_name, _stat) \
+	FM10K_STAT_FIELDS(struct fm10k_intfc, _name, _stat)
 
 static const struct fm10k_stats fm10k_gstrings_global_stats[] = {
 	FM10K_STAT("tx_restart_queue", restart_queue),
@@ -75,11 +78,9 @@ static const struct fm10k_stats fm10k_gstrings_pf_stats[] = {
 	FM10K_STAT("nodesc_drop", stats.nodesc_drop.count),
 };
 
-#define FM10K_MBX_STAT(_name, _stat) { \
-	.stat_string = _name, \
-	.sizeof_stat = FIELD_SIZEOF(struct fm10k_mbx_info, _stat), \
-	.stat_offset = offsetof(struct fm10k_mbx_info, _stat) \
-}
+/* mailbox statistics */
+#define FM10K_MBX_STAT(_name, _stat) \
+	FM10K_STAT_FIELDS(struct fm10k_mbx_info, _name, _stat)
 
 static const struct fm10k_stats fm10k_gstrings_mbx_stats[] = {
 	FM10K_MBX_STAT("mbx_tx_busy", tx_busy),