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/pcnet32.c b/drivers/net/pcnet32.c
index a2254f7..566fd89 100644
--- a/drivers/net/pcnet32.c
+++ b/drivers/net/pcnet32.c
@@ -448,7 +448,7 @@
{
struct pcnet32_private *lp = netdev_priv(dev);
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
napi_disable(&lp->napi);
netif_tx_disable(dev);
}
@@ -2398,7 +2398,7 @@
}
pcnet32_restart(dev, CSR0_NORMAL);
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
netif_wake_queue(dev);
spin_unlock_irqrestore(&lp->lock, flags);
@@ -2449,8 +2449,6 @@
/* Trigger an immediate send poll. */
lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL);
- dev->trans_start = jiffies;
-
if (lp->tx_ring[(entry + 1) & lp->tx_mod_mask].base != 0) {
lp->tx_full = 1;
netif_stop_queue(dev);