tree 80a5a2f555285a45c8e38f409aa996953f60fee6
parent c9c7d2e5a06cd3a26b6be096949e3371ec2aa123
author Jesse Brandeburg <jesse.brandeburg@intel.com> 1241694455 +0000
committer David S. Miller <davem@davemloft.net> 1241733152 -0700

e1000/e1000e/igb/ixgb: don't txhang after link down

after the recent changes to wired drivers to use only
netif_carrier_off the driver can have outstanding tx work to
complete that will never complete once link is down.  Since the
intel hardware will hold this tx work forever, the driver
notices a tx timeout condition internally and might try
to instigate printk and reset of the part with a
netif_stop_queue, which doesn't work because link is down.

Don't bother arming to tx hang detection when link is down.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>