[PATCH 2/2] mt76: mt7915: fix bit fields for HT rate idx
From: Shayne Chen <shayne.chen@mediatek.com>
Date: 2021-07-20 13:01:31
Also in:
linux-wireless
Subsystem:
mediatek mt76 wireless lan driver, the rest · Maintainers:
Felix Fietkau, Lorenzo Bianconi, Ryder Lee, Linus Torvalds
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>
---
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 5e6f3ef..15f4341 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h@@ -283,7 +283,8 @@ 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
--
2.25.1
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