net: trans_start cleanups

Now that core network takes care of trans_start updates, dont do it
in drivers themselves, if possible. Drivers can avoid one cache miss
(on dev->trans_start) in their start_xmit() handler.

Exceptions are NETIF_F_LLTX drivers

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index a818ea998bb..254b6f724c6 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -769,7 +769,7 @@ dm9000_hash_table(struct net_device *dev)
 }
 
 /*
- * Initilize dm9000 board
+ * Initialize dm9000 board
  */
 static void
 dm9000_init_dm9000(struct net_device *dev)
@@ -825,7 +825,7 @@ dm9000_init_dm9000(struct net_device *dev)
         /* Init Driver variable */
         db->tx_pkt_cnt = 0;
         db->queue_pkt_len = 0;
-        dev->trans_start = 0;
+        dev->trans_start = jiffies;
 }
 
 /* Our watchdog timed out. Called by the networking layer */
@@ -843,7 +843,7 @@ static void dm9000_timeout(struct net_device *dev)
         dm9000_reset(db);
         dm9000_init_dm9000(dev);
         /* We can accept TX packets again */
-        dev->trans_start = jiffies;
+        dev->trans_start = jiffies; /* prevent tx timeout */
         netif_wake_queue(dev);
 
         /* Restore previous register address */