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-rw-r--r--drivers/net/wireless/ath/ath9k/init.c2
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c14
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index cdb0f1c..b590a9e 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -690,6 +690,8 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
if (AR_SREV_5416(sc->sc_ah))
hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
+ hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
+
hw->queues = 4;
hw->max_rates = 4;
hw->channel_change_time = 5000;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 5248257..3c5de73 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1845,6 +1845,20 @@ static int ath9k_set_key(struct ieee80211_hw *hw,
if (ath9k_modparam_nohwcrypt)
return -ENOSPC;
+ if (vif->type == NL80211_IFTYPE_ADHOC &&
+ (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
+ key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
+ !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
+ /*
+ * For now, disable hw crypto for the RSN IBSS group keys. This
+ * could be optimized in the future to use a modified key cache
+ * design to support per-STA RX GTK, but until that gets
+ * implemented, use of software crypto for group addressed
+ * frames is a acceptable to allow RSN IBSS to be used.
+ */
+ return -EOPNOTSUPP;
+ }
+
mutex_lock(&sc->mutex);
ath9k_ps_wakeup(sc);
ath_dbg(common, ATH_DBG_CONFIG, "Set HW Key\n");
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