diff mbox series

[V3,net-next,1/4] net: ena: ethtool: convert stat_offset to 64 bit resolution

Message ID 20200909064627.30104-2-sameehj@amazon.com
State Changes Requested
Delegated to: David Miller
Headers show
Series Enhance current features in ena driver | expand

Commit Message

Jubran, Samih Sept. 9, 2020, 6:46 a.m. UTC 
From: Sameeh Jubran <sameehj@amazon.com>

The type of all stat fields is u64, therefore when iterating over stat
fields in a stats struct, it makes sense to use an offset in 64 bit
resolution. Doing so allows us to drop some of the casting that is
currently used when referencing stats.

Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
---
 drivers/net/ethernet/amazon/ena/ena_ethtool.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
index 430275bc0..291d169dd 100644
--- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c
+++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
@@ -41,12 +41,12 @@  struct ena_stats {
 
 #define ENA_STAT_ENA_COM_ENTRY(stat) { \
 	.name = #stat, \
-	.stat_offset = offsetof(struct ena_com_stats_admin, stat) \
+	.stat_offset = offsetof(struct ena_com_stats_admin, stat) / sizeof(u64) \
 }
 
 #define ENA_STAT_ENTRY(stat, stat_type) { \
 	.name = #stat, \
-	.stat_offset = offsetof(struct ena_stats_##stat_type, stat) \
+	.stat_offset = offsetof(struct ena_stats_##stat_type, stat) / sizeof(u64) \
 }
 
 #define ENA_STAT_RX_ENTRY(stat) \
@@ -141,8 +141,7 @@  static void ena_queue_stats(struct ena_adapter *adapter, u64 **data)
 		for (j = 0; j < ENA_STATS_ARRAY_TX; j++) {
 			ena_stats = &ena_stats_tx_strings[j];
 
-			ptr = (u64 *)((uintptr_t)&ring->tx_stats +
-				(uintptr_t)ena_stats->stat_offset);
+			ptr = (u64 *)&ring->tx_stats + ena_stats->stat_offset;
 
 			ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
 		}
@@ -153,8 +152,8 @@  static void ena_queue_stats(struct ena_adapter *adapter, u64 **data)
 		for (j = 0; j < ENA_STATS_ARRAY_RX; j++) {
 			ena_stats = &ena_stats_rx_strings[j];
 
-			ptr = (u64 *)((uintptr_t)&ring->rx_stats +
-				(uintptr_t)ena_stats->stat_offset);
+			ptr = (u64 *)&ring->rx_stats +
+				ena_stats->stat_offset;
 
 			ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
 		}
@@ -170,8 +169,8 @@  static void ena_dev_admin_queue_stats(struct ena_adapter *adapter, u64 **data)
 	for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) {
 		ena_stats = &ena_stats_ena_com_strings[i];
 
-		ptr = (u64 *)((uintptr_t)&adapter->ena_dev->admin_queue.stats +
-			(uintptr_t)ena_stats->stat_offset);
+		ptr = (u64 *)&adapter->ena_dev->admin_queue.stats +
+			ena_stats->stat_offset;
 
 		*(*data)++ = *ptr;
 	}
@@ -189,8 +188,7 @@  static void ena_get_ethtool_stats(struct net_device *netdev,
 	for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
 		ena_stats = &ena_stats_global_strings[i];
 
-		ptr = (u64 *)((uintptr_t)&adapter->dev_stats +
-			(uintptr_t)ena_stats->stat_offset);
+		ptr = (u64 *)&adapter->dev_stats + ena_stats->stat_offset;
 
 		ena_safe_update_stat(ptr, data++, &adapter->syncp);
 	}