mt76: mt7915: fix ht mcs in mt7915_mcu_get_rx_rate()

The mcs value of HT mode reported by mt7915_mcu_get_rx_rate()
has already been converted to the expected format.

Tested-by: Yiwei Chung <yiwei.chung@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/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 6097653abda4c6ae38a02e5b73c9dbed55bba1e8..5fdd1a6d32ee1273d84b602ae9d253b908294b65 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -3501,7 +3501,9 @@ int mt7915_mcu_get_rx_rate(struct mt7915_phy *phy, struct ieee80211_vif *vif,
                break;
        case MT_PHY_TYPE_HT:
        case MT_PHY_TYPE_HT_GF:
-               rate->mcs += (rate->nss - 1) * 8;
+               if (rate->mcs > 31)
+                       return -EINVAL;
+
                flags |= RATE_INFO_FLAGS_MCS;
 
                if (res->gi)