wifi: mt76: mt7996: mark GCMP IGTK unsupported

Since the FW does not support to handle the integrity and validation of
IGTK in GCMP mode, return -EOPNOTSUPP to let it be handled by upper layer.

Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
index 234e6495871b83668ad9a74fb48700adb501406f..0889a699d603c2f004826ccbe8f77eb9118962aa 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
@@ -350,9 +350,12 @@ static int mt7996_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
        case WLAN_CIPHER_SUITE_GCMP:
        case WLAN_CIPHER_SUITE_GCMP_256:
        case WLAN_CIPHER_SUITE_SMS4:
+               break;
        case WLAN_CIPHER_SUITE_BIP_GMAC_128:
        case WLAN_CIPHER_SUITE_BIP_GMAC_256:
-               break;
+               if (key->keyidx == 6 || key->keyidx == 7)
+                       break;
+               fallthrough;
        case WLAN_CIPHER_SUITE_WEP40:
        case WLAN_CIPHER_SUITE_WEP104:
        default: