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wifi: mt76: mt7925: fix msg len mismatch between driver and firmware

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The mt7925_tx_power_limit_tlv struct begins with a 4-byte rsv[] field
that acts as a UNI command header prefix. The firmware dispatcher did
not use the 4-byte rsv[] and will only check the payloads after the
4-byte rsv[] As a result, the total message length minus the 4-byte
prefix. Fix this by setting len to msg_len - 4.

Fixes: ccb1863 ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Signed-off-by: Jared.Huang <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Jared.Huang
2026-07-21 17:57:01 +02:00
committed by Felix Fietkau
parent 2119837464
commit cead9778a9
1 changed files with 1 additions and 1 deletions
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mt7925/mcu.c
+1 -1
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@@ -3913,7 +3913,7 @@ 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(msg_len);
tx_power_tlv->len = cpu_to_le16(msg_len - 4);
switch (band) {
case NL80211_BAND_2GHZ: