[PATCH 3/3] mt76: mt7915: update bss_info with cipher after setting the group key

[Felix Fietkau <nbd@nbd.name>]

In some cases, the WA firmware needs to know if encryption is used, in order
to set the protection bit of packets

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 drivers/net/wireless/mediatek/mt76/mt7915/main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
index aed0a5303aa8..b45b75f98c4d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
@@ -367,6 +367,7 @@ static int mt7915_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 			  struct ieee80211_key_conf *key)
 {
 	struct mt7915_dev *dev = mt7915_hw_dev(hw);
+	struct mt7915_phy *phy = mt7915_hw_phy(hw);
 	struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
 	struct mt7915_sta *msta = sta ? (struct mt7915_sta *)sta->drv_priv :
 				  &mvif->sta;
@@ -406,6 +407,11 @@ static int mt7915_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 
 	mutex_lock(&dev->mt76.mutex);
 
+	if (cmd == SET_KEY && !sta && !mvif->mt76.cipher) {
+		mvif->mt76.cipher = mt76_connac_mcu_get_cipher(key->cipher);
+		mt7915_mcu_add_bss_info(phy, vif, true);
+	}
+
 	if (cmd == SET_KEY)
 		*wcid_keyidx = idx;
 	else if (idx == *wcid_keyidx)
-- 
2.34.1