From: Shayne Chen shayne.chen@mediatek.com
[ Upstream commit 47f1c08db7f3aaa2d13f8e56209375462ace7b8a ]
The bit fields of tx rate idx should be 6 bits, otherwise it might be incorrect in HT mode. For VHT/HE rates, only 4 bits are actually used by rate idx, the other 2 bits are used for other functions.
Fixes: c31d94af1843 ("mt76: mt7915: fix tx rate related fields in tx descriptor") Signed-off-by: Shayne Chen shayne.chen@mediatek.com Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mediatek/mt76/mt7915/mac.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h index eb1885f4bd8eb..fee7741b5d421 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h @@ -272,7 +272,8 @@ enum tx_mcu_port_q_idx { #define MT_TX_RATE_MODE GENMASK(9, 6) #define MT_TX_RATE_SU_EXT_TONE BIT(5) #define MT_TX_RATE_DCM BIT(4) -#define MT_TX_RATE_IDX GENMASK(3, 0) +/* VHT/HE only use bits 0-3 */ +#define MT_TX_RATE_IDX GENMASK(5, 0)
#define MT_TXP_MAX_BUF_NUM 6