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mac80211: stop queues temporarily for flushing

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Sometimes queues are flushed in the middle of
operation, which can lead to driver issues.
Stop queues temporarily, while flushing, to
avoid transmitting new packets while they are
being flushed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2013-02-13 12:25:28 +01:00
parent 39ecc01d1b
commit 445ea4e83e
8 changed files with 33 additions and 12 deletions
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net/mac80211/mlme.c
+4
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@@ -1009,6 +1009,7 @@ static void ieee80211_chswitch_work(struct work_struct *work)
/* XXX: wait for a beacon first? */
ieee80211_wake_queues_by_reason(&sdata->local->hw,
IEEE80211_MAX_QUEUE_MAP,
IEEE80211_QUEUE_STOP_REASON_CSA);
out:
ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
@@ -1108,6 +1109,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
if (sw_elem->mode)
ieee80211_stop_queues_by_reason(&sdata->local->hw,
IEEE80211_MAX_QUEUE_MAP,
IEEE80211_QUEUE_STOP_REASON_CSA);
if (sdata->local->ops->channel_switch) {
@@ -1375,6 +1377,7 @@ void ieee80211_dynamic_ps_disable_work(struct work_struct *work)
}
ieee80211_wake_queues_by_reason(&local->hw,
IEEE80211_MAX_QUEUE_MAP,
IEEE80211_QUEUE_STOP_REASON_PS);
}
@@ -2071,6 +2074,7 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
true, frame_buf);
ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
ieee80211_wake_queues_by_reason(&sdata->local->hw,
IEEE80211_MAX_QUEUE_MAP,
IEEE80211_QUEUE_STOP_REASON_CSA);
mutex_unlock(&ifmgd->mtx);