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, 1 insertions, 2 deletions

diff --git a/drivers/net/depca.c b/drivers/net/depca.c
index a88300a0d1e8..38d4d9eefbdd 100644
--- a/drivers/net/depca.c
+++ b/drivers/net/depca.c
@@ -921,7 +921,7 @@ static void depca_tx_timeout(struct net_device *dev)
         STOP_DEPCA;
         depca_init_ring(dev);
         LoadCSRs(dev);
-        dev->trans_start = jiffies;
+        dev->trans_start = jiffies; /* prevent tx timeout */
         netif_wake_queue(dev);
         InitRestartDepca(dev);
 }
@@ -954,7 +954,6 @@ static netdev_tx_t depca_start_xmit(struct sk_buff *skb,
                         outw(CSR0, DEPCA_ADDR);
                         outw(INEA | TDMD, DEPCA_DATA);
 
-                        dev->trans_start = jiffies;
                         dev_kfree_skb(skb);
                 }
                 if (TX_BUFFS_AVAIL)