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authorEric Dumazet <eric.dumazet@gmail.com>2010-05-10 16:01:31 +0400
committerDavid S. Miller <davem@davemloft.net>2010-05-10 16:01:31 +0400
commit1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1 (patch)
treed1955a7639e99832590df26466a34d5786a880ae /drivers/net/sb1250-mac.c
parent2b0b05ddc04b6d45e71cd36405df512075786f1e (diff)
downloadlinux-1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1.tar.xz
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>
Diffstat (limited to 'drivers/net/sb1250-mac.c')
-rw-r--r--drivers/net/sb1250-mac.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/net/sb1250-mac.c b/drivers/net/sb1250-mac.c
index fec3c29b2ea8..1f3acc3a5dfd 100644
--- a/drivers/net/sb1250-mac.c
+++ b/drivers/net/sb1250-mac.c
@@ -2068,8 +2068,6 @@ static int sbmac_start_tx(struct sk_buff *skb, struct net_device *dev)
return NETDEV_TX_BUSY;
}
- dev->trans_start = jiffies;
-
spin_unlock_irqrestore(&sc->sbm_lock, flags);
return NETDEV_TX_OK;
@@ -2488,7 +2486,7 @@ static void sbmac_tx_timeout (struct net_device *dev)
spin_lock_irqsave(&sc->sbm_lock, flags);
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
dev->stats.tx_errors++;
spin_unlock_irqrestore(&sc->sbm_lock, flags);