[PATCH v2 2/3] wifi: mt76: mt7921: fix the wrong rate pickup for the chanctx driver

[Deren Wu]

From: Sean Wang <sean.wang at mediatek.com>

The variable band should be determined by the ieee80211_chanctx_conf when
the driver is a kind of chanctx one e.g mt7921 and mt7922 driver so we
added the extension to mt76_connac2_mac_tx_rate_val by distinguishing if
it can support chanctx to fix the incorrect rate pickup.

Fixes: 41ac53c899bd ("wifi: mt76: mt7921: introduce chanctx support")
Signed-off-by: Sean Wang <sean.wang at mediatek.com>
Reviewed-by: David Ruth <druth at chromium.org>
Tested-by: David Ruth <druth at chromium.org>
Signed-off-by: Deren Wu <deren.wu at mediatek.com>
---
v2: rebase on the top of maintainer tree
---
 drivers/net/wireless/mediatek/mt76/mac80211.c        | 9 +++++++--
 drivers/net/wireless/mediatek/mt76/mt76.h            | 3 ++-
 drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c | 7 +++++--
 3 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c
index 8cd1a7ed82f4..cb76053973aa 100644
--- a/drivers/net/wireless/mediatek/mt76/mac80211.c
+++ b/drivers/net/wireless/mediatek/mt76/mac80211.c
@@ -1744,11 +1744,16 @@ mt76_init_queue(struct mt76_dev *dev, int qid, int idx, int n_desc,
 }
 EXPORT_SYMBOL_GPL(mt76_init_queue);
 
-u16 mt76_calculate_default_rate(struct mt76_phy *phy, int rateidx)
+u16 mt76_calculate_default_rate(struct mt76_phy *phy,
+				struct ieee80211_vif *vif, int rateidx)
 {
+	struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
+	struct cfg80211_chan_def *chandef = mvif->ctx ?
+					    &mvif->ctx->def :
+					    &phy->chandef;
 	int offset = 0;
 
-	if (phy->chandef.chan->band != NL80211_BAND_2GHZ)
+	if (chandef->chan->band != NL80211_BAND_2GHZ)
 		offset = 4;
 
 	/* pick the lowest rate for hidden nodes */
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index fabed3f3ef32..fede40cf86b7 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -1107,7 +1107,8 @@ int mt76_get_of_eeprom(struct mt76_dev *dev, void *data, int offset, int len);
 struct mt76_queue *
 mt76_init_queue(struct mt76_dev *dev, int qid, int idx, int n_desc,
 		int ring_base, u32 flags);
-u16 mt76_calculate_default_rate(struct mt76_phy *phy, int rateidx);
+u16 mt76_calculate_default_rate(struct mt76_phy *phy,
+				struct ieee80211_vif *vif, int rateidx);
 static inline int mt76_init_tx_queue(struct mt76_phy *phy, int qid, int idx,
 				     int n_desc, int ring_base, u32 flags)
 {
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c
index 3b63c64e7d54..93402d2c2538 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c
@@ -293,7 +293,10 @@ u16 mt76_connac2_mac_tx_rate_val(struct mt76_phy *mphy,
 				 struct ieee80211_vif *vif,
 				 bool beacon, bool mcast)
 {
-	u8 nss = 0, mode = 0, band = mphy->chandef.chan->band;
+	struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
+	struct cfg80211_chan_def *chandef = mvif->ctx ?
+					    &mvif->ctx->def : &mphy->chandef;
+	u8 nss = 0, mode = 0, band = chandef->chan->band;
 	int rateidx = 0, mcast_rate;
 
 	if (!vif)
@@ -326,7 +329,7 @@ u16 mt76_connac2_mac_tx_rate_val(struct mt76_phy *mphy,
 		rateidx = ffs(vif->bss_conf.basic_rates) - 1;
 
 legacy:
-	rateidx = mt76_calculate_default_rate(mphy, rateidx);
+	rateidx = mt76_calculate_default_rate(mphy, vif, rateidx);
 	mode = rateidx >> 8;
 	rateidx &= GENMASK(7, 0);
 out:
-- 
2.18.0