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, 2 insertions, 3 deletions

diff --git a/drivers/net/ni65.c b/drivers/net/ni65.c
index 9225c76cac40..da228a0dd6cd 100644
--- a/drivers/net/ni65.c
+++ b/drivers/net/ni65.c
@@ -784,7 +784,7 @@ static void ni65_stop_start(struct net_device *dev,struct priv *p)
                 if(!p->lock)
                         if (p->tmdnum || !p->xmit_queued)
                                 netif_wake_queue(dev);
-                dev->trans_start = jiffies;
+                dev->trans_start = jiffies; /* prevent tx timeout */
         }
         else
                 writedatareg(CSR0_STRT | csr0);
@@ -1150,7 +1150,7 @@ static void ni65_timeout(struct net_device *dev)
                 printk("%02x ",p->tmdhead[i].u.s.status);
         printk("\n");
         ni65_lance_reinit(dev);
-        dev->trans_start = jiffies;
+        dev->trans_start = jiffies; /* prevent tx timeout */
         netif_wake_queue(dev);
 }
 
@@ -1213,7 +1213,6 @@ static netdev_tx_t ni65_send_packet(struct sk_buff *skb,
                         netif_wake_queue(dev);
 
                 p->lock = 0;
-                dev->trans_start = jiffies;
 
                 spin_unlock_irqrestore(&p->ring_lock, flags);
         }