iwlegacy: always monitor for stuck queues
authorStanislaw Gruszka <sgruszka@redhat.com>
Wed, 4 Jul 2012 11:20:20 +0000 (13:20 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 19 Jul 2012 15:58:57 +0000 (08:58 -0700)
commit57cff816121720c80b39e3b3fb0ef36128fdc45b
tree1db355b0708c0fa71462fb8c23d940fa3fb5eca0
parent3cc4e0e187e4187a6ec13a79dafc1b0f72e31afa
iwlegacy: always monitor for stuck queues

commit c2ca7d92ed4bbd779516beb6eb226e19f7f7ab0f upstream.

This is iwlegacy version of:

commit 342bbf3fee2fa9a18147e74b2e3c4229a4564912
Author: Johannes Berg <johannes.berg@intel.com>
Date:   Sun Mar 4 08:50:46 2012 -0800

    iwlwifi: always monitor for stuck queues

    If we only monitor while associated, the following
    can happen:
     - we're associated, and the queue stuck check
       runs, setting the queue "touch" time to X
     - we disassociate, stopping the monitoring,
       which leaves the time set to X
     - almost 2s later, we associate, and enqueue
       a frame
     - before the frame is transmitted, we monitor
       for stuck queues, and find the time set to
       X, although it is now later than X + 2000ms,
       so we decide that the queue is stuck and
       erroneously restart the device

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/wireless/iwlegacy/common.c