wifi: mt76: mt7925: fix incorrect length field in txpower command

Set `tx_power_tlv->len` to `msg_len` instead of `sizeof(*tx_power_tlv)`
to ensure the correct message length is sent to firmware.

Cc: stable@vger.kernel.org
Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Link: https://patch.msgid.link/20250908072526.1833938-1-mingyen.hsieh@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
index 8d9d2c1b83acaf589dce06f744de9281203f8ca4..2daf5a29220fd90be6ae27209c95774784881d87 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
@@ -3730,7 +3730,7 @@ mt7925_mcu_rate_txpower_band(struct mt76_phy *phy,
                memcpy(tx_power_tlv->alpha2, dev->alpha2, sizeof(dev->alpha2));
                tx_power_tlv->n_chan = num_ch;
                tx_power_tlv->tag = cpu_to_le16(0x1);
-               tx_power_tlv->len = cpu_to_le16(sizeof(*tx_power_tlv));
+               tx_power_tlv->len = cpu_to_le16(msg_len);
 
                switch (band) {
                case NL80211_BAND_2GHZ: