[PATCH 5.16 0467/1017] mt76: mt7915: fix the nss setting in bitrates

Greg Kroah-Hartman
2022-04-05T09:51:29Z

From: MeiChia Chiu <meichia.chiu@mediatek.com>

[ Upstream commit c41d2a075206fcbdc89695b874a6ac06160b4f1a ]

without this change, the fixed MCS only supports 1 Nss.

Fixes: 70fd1333cd32f ("mt76: mt7915: rework .set_bitrate_mask() to support more options")
Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: MeiChia Chiu <meichia.chiu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index ef8b0d0a05ef..21fbe7a6141f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -2124,9 +2124,12 @@ mt7915_mcu_add_rate_ctrl_fixed(struct mt7915_dev *dev,
phy.sgi |= gi << (i << (_he)); \
phy.he_ltf |= mask->control[band].he_ltf << (i << (_he));\
} \
- for (i = 0; i < ARRAY_SIZE(mask->control[band]._mcs); i++) \
- nrates += hweight16(mask->control[band]._mcs[i]); \
- phy.mcs = ffs(mask->control[band]._mcs[0]) - 1; \
+ for (i = 0; i < ARRAY_SIZE(mask->control[band]._mcs); i++) { \
+ if (!mask->control[band]._mcs[i]) \
+ continue; \
+ nrates += hweight16(mask->control[band]._mcs[i]); \
+ phy.mcs = ffs(mask->control[band]._mcs[i]) - 1; \
+ } \
} while (0)

if (sta->he_cap.has_he) {
--
2.34.1