openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

netxen: fix race in skb->len access 

As soon as skb is given to hardware, TX completion can free skb under
us.
Therefore, we should update dev stats before kicking the device.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2011-06-19 20:26:15 +00:00 committed by David S. Miller
parent 44da29d26b
commit c82b9d7fe7
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/netxen/netxen_nic_main.c
View File

@ -1965,11 +1965,11 @@ netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
netxen_tso_check(netdev, tx_ring, first_desc, skb);
netxen_nic_update_cmd_producer(adapter, tx_ring);
adapter->stats.txbytes += skb->len;
adapter->stats.xmitcalled++;
netxen_nic_update_cmd_producer(adapter, tx_ring);
return NETDEV_TX_OK;
drop_packet: