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authorEric Dumazet <eric.dumazet@gmail.com>2010-05-10 12:01:31 (GMT)
committerDavid S. Miller <davem@davemloft.net>2010-05-10 12:01:31 (GMT)
commit1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1 (patch)
treed1955a7639e99832590df26466a34d5786a880ae /drivers/net/ni52.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/ni52.c')
-rw-r--r--drivers/net/ni52.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/net/ni52.c b/drivers/net/ni52.c
index b7837eb..9bddb5f 100644
--- a/drivers/net/ni52.c
+++ b/drivers/net/ni52.c
@@ -1147,7 +1147,7 @@ static void ni52_timeout(struct net_device *dev)
writeb(CUC_START, &p->scb->cmd_cuc);
ni_attn586();
wait_for_scb_cmd(dev);
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
return 0;
}
#endif
@@ -1165,7 +1165,7 @@ static void ni52_timeout(struct net_device *dev)
ni52_close(dev);
ni52_open(dev);
}
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
}
/******************************************************
@@ -1218,7 +1218,6 @@ static netdev_tx_t ni52_send_packet(struct sk_buff *skb,
writeb(CUC_START, &p->scb->cmd_cuc);
}
ni_attn586();
- dev->trans_start = jiffies;
if (!i)
dev_kfree_skb(skb);
wait_for_scb_cmd(dev);
@@ -1240,7 +1239,6 @@ static netdev_tx_t ni52_send_packet(struct sk_buff *skb,
writew(0, &p->nop_cmds[next_nop]->cmd_status);
writew(make16(p->xmit_cmds[0]), &p->nop_cmds[p->nop_point]->cmd_link);
- dev->trans_start = jiffies;
p->nop_point = next_nop;
dev_kfree_skb(skb);
# endif
@@ -1256,7 +1254,6 @@ static netdev_tx_t ni52_send_packet(struct sk_buff *skb,
writew(0, &p->nop_cmds[next_nop]->cmd_status);
writew(make16(p->xmit_cmds[p->xmit_count]),
&p->nop_cmds[p->xmit_count]->cmd_link);
- dev->trans_start = jiffies;
p->xmit_count = next_nop;
{
unsigned long flags;