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-rw-r--r--drivers/net/wireless/ath/ath9k/init.c1
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c12
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 289a2444d534..ea1d17a265a7 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -1014,6 +1014,7 @@ static void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_AIRTIME_FAIRNESS);
wiphy_ext_feature_set(hw->wiphy,
NL80211_EXT_FEATURE_MULTICAST_REGISTRATIONS);
+ wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CAN_REPLACE_PTK0);
}
int ath9k_init_device(u16 devid, struct ath_softc *sc,
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 0ea3b80f664c..411eece01bb1 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -19,6 +19,9 @@
#include "ath9k.h"
#include "btcoex.h"
+static void ath9k_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ u32 queues, bool drop);
+
u8 ath9k_parse_mpdudensity(u8 mpdudensity)
{
/*
@@ -1701,6 +1704,15 @@ static int ath9k_set_key(struct ieee80211_hw *hw,
return -EOPNOTSUPP;
}
+ /* There may be MPDUs queued for the outgoing PTK key. Flush queues to
+ * make sure these are not send unencrypted or with a wrong (new) key
+ */
+ if (cmd == DISABLE_KEY && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
+ ieee80211_stop_queues(hw);
+ ath9k_flush(hw, vif, 0, true);
+ ieee80211_wake_queues(hw);
+ }
+
mutex_lock(&sc->mutex);
ath9k_ps_wakeup(sc);
ath_dbg(common, CONFIG, "Set HW Key %d\n", cmd);