mt7601u: use sw encryption for hw unsupported ciphers

Fall back to software encryption for hw unsupported ciphers in order
to enable 802.11w

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/mediatek/mt7601u/main.c b/drivers/net/wireless/mediatek/mt7601u/main.c
index 7b21016..0f17890 100644 (file)
--- a/drivers/net/wireless/mediatek/mt7601u/main.c
+++ b/drivers/net/wireless/mediatek/mt7601u/main.c
@@ -308,6 +308,17 @@ mt7601u_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
        int idx = key->keyidx;
        int ret;
 
+       /* fall back to sw encryption for unsupported ciphers */
+       switch (key->cipher) {
+       case WLAN_CIPHER_SUITE_WEP40:
+       case WLAN_CIPHER_SUITE_WEP104:
+       case WLAN_CIPHER_SUITE_TKIP:
+       case WLAN_CIPHER_SUITE_CCMP:
+               break;
+       default:
+               return -EOPNOTSUPP;
+       }
+
        if (cmd == SET_KEY) {
                key->hw_key_idx = wcid->idx;
                wcid->hw_key_idx = idx;