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>
diff --git a/drivers/net/au1000_eth.c b/drivers/net/au1000_eth.c
index 7abb2c8..ece6128 100644
--- a/drivers/net/au1000_eth.c
+++ b/drivers/net/au1000_eth.c
@@ -924,7 +924,6 @@
au_sync();
dev_kfree_skb(skb);
aup->tx_head = (aup->tx_head + 1) & (NUM_TX_DMA - 1);
- dev->trans_start = jiffies;
return NETDEV_TX_OK;
}
@@ -937,7 +936,7 @@
netdev_err(dev, "au1000_tx_timeout: dev=%p\n", dev);
au1000_reset_mac(dev);
au1000_init(dev);
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
netif_wake_queue(dev);
}