[PATCH 07/15] wifi: mt76: mt7925: use OFDM-only PHY mode for NAN STA records
From: Sean Wang <sean.wang@kernel.org>
Date: 2026-08-24 19:53:18
Also in:
linux-mediatek
Subsystem:
mediatek mt76 wireless lan driver, the rest · Maintainers:
Felix Fietkau, Lorenzo Bianconi, Ryder Lee, Linus Torvalds
From: Stella Liu <redacted>
NAN operates with OFDM and does not support CCK, so the phy, rate
control and BSS rate TLVs must not fall back to 2.4 GHz. Borrow the
5 GHz band lookup to keep the STA records OFDM-only.
Fixes: 0f3605e4f8de ("wifi: mt76: mt7925: wire up NAN operations")
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Stella Liu <redacted>
---
drivers/net/wireless/mediatek/mt76/mt7925/mcu.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
index fa29c486a455..1cfc209f9be5 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c@@ -1914,11 +1914,9 @@ mt7925_mcu_sta_phy_tlv(struct sk_buff *skb, phy = (struct sta_rec_phy *)tlv; if (mt7925_vif_is_nan(vif)) { - enum nl80211_band band = chandef->chan ? chandef->chan->band - : NL80211_BAND_2GHZ; phy->phy_type = PHY_TYPE_BIT_OFDM | PHY_TYPE_BIT_ERP; phy->phy_type |= mt76_connac_get_phy_mode_v2(mvif->phy->mt76, vif, - band, + NL80211_BAND_5GHZ, link_sta); } else { phy->phy_type = mt76_connac_get_phy_mode_v2(mvif->phy->mt76, vif,
@@ -2003,7 +2001,11 @@ mt7925_mcu_sta_rate_ctrl_tlv(struct sk_buff *skb, ra_info = (struct sta_rec_ra_info *)tlv; if (mt7925_vif_is_nan(vif)) - band = chandef->chan ? chandef->chan->band : NL80211_BAND_2GHZ; + /* NAN is OFDM-only per spec; borrow the 5 GHz band lookup to + * avoid PHY_TYPE_BIT_HR_DSSS/CCK bits being added to phy_type. + * NAN interfaces have no chanctx, so chandef->chan is always NULL. + */ + band = NL80211_BAND_5GHZ; else band = chandef->chan->band;
@@ -2847,7 +2849,7 @@ mt7925_mcu_bss_bmc_tlv(struct sk_buff *skb, struct mt792x_phy *phy, bmc = (struct bss_rate_tlv *)tlv; if (mt7925_vif_is_nan(vif)) - band = chandef->chan ? chandef->chan->band : NL80211_BAND_2GHZ; + band = NL80211_BAND_5GHZ; else band = chandef->chan->band;
--
2.43.0