diff options
| author | Michal Kazior <michal.kazior@tieto.com> | 2015-08-07 09:08:21 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-22 14:49:29 -0700 |
| commit | ab399803e0894fb758dede3590ebc0adb2179838 (patch) | |
| tree | e2054dd6124022addf426d559cf86ba0382d349d /drivers | |
| parent | 899ec57d57e8b42d4ca06a4882affceff37de7a0 (diff) | |
ath10k: wake up queue upon vif creation
commit 6d2d51ecfff13f5f6ffc476dccf4d5b2668072eb upstream.
Vif's vdev_id is used as queue number. However due
to the tx pausing design in ath10k it was possible
for a new interface to be created with its tx
queue stopped (via ieee80211_stop_queues). This
could in turn leave the interface inoperable until
ath10k_mac_tx_unlock() was called.
This problem only affected multi-vif scenarios when
new interfaces were created some time later after
other interfaces have been running for some time
and had Tx queue full at some point prior.
Possible manifestation of the bug was
authentication timeout for a client vif.
Fixes: 96d828d45e16 ("ath10k: rework tx queue locking")
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/mac.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index fe9738d92831..0d3c474ff76d 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -4283,6 +4283,11 @@ static int ath10k_add_interface(struct ieee80211_hw *hw, } } + spin_lock_bh(&ar->htt.tx_lock); + if (!ar->tx_paused) + ieee80211_wake_queue(ar->hw, arvif->vdev_id); + spin_unlock_bh(&ar->htt.tx_lock); + mutex_unlock(&ar->conf_mutex); return 0; |