From: Greg KH <gre...@linuxfoundation.org>
3.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Stanislaw Gruszka <sgrus...@redhat.com>
commit c2ca7d92ed4bbd779516beb6eb226e19f7f7ab0f upstream.
This is iwlegacy version of:
commit 342bbf3fee2fa9a18147e74b2e3c4229a4564912
Author: Johannes Berg <johannes.b...@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 <sgrus...@redhat.com>
Signed-off-by: John W. Linville <linvi...@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/net/wireless/iwlegacy/common.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
--- a/drivers/net/wireless/iwlegacy/common.c
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -4767,14 +4767,12 @@ il_bg_watchdog(unsigned long data)
return;
/* monitor and check for other stuck queues */
- if (il_is_any_associated(il)) {
- for (cnt = 0; cnt < il->hw_params.max_txq_num; cnt++) {
- /* skip as we already checked the command queue */
- if (cnt == il->cmd_queue)
- continue;
- if (il_check_stuck_queue(il, cnt))
- return;
- }
+ for (cnt = 0; cnt < il->hw_params.max_txq_num; cnt++) {
+ /* skip as we already checked the command queue */
+ if (cnt == il->cmd_queue)
+ continue;
+ if (il_check_stuck_queue(il, cnt))
+ return;
}
mod_timer(&il->watchdog,
--
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