In 6 GHz, QoS/EDCA operation is mandatory as per IEEE 802.11ax/802.11be.
APs are not required to include a WMM Information or WMM Parameter
element in Beacon or Probe Response frames, unlike in 2.4/5 GHz.
Instead, stations must assume that QoS is always enabled and use EDCA
(default EDCA parameters apply if no explicit EDCA Parameter Set is
present).
Currently, mac80211 only sets bss->wmm_used when a WMM IE is present.
When it is missing in 6 GHz, mac80211 wrongly downgrades the connection
to legacy rates, resulting in unsuccessful authentication and association.
Users see log messages like
"WMM/QoS not supported, limiting to legacy"
"Rejecting non-HE 6/7 GHz connection"
Fix this by unconditionally setting bss->wmm_used = true for 6 GHz BSSs
during scan result processing. This ensures that mac80211 maintains HE/EHT
capabilities even when the WMM IE is absent.
Signed-off-by: Jeff Isaacs <scaasiffej@xxxxxxxxx>
---
net/mac80211/scan.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index dbf98aa4cd67..ecf0690d8c08 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -142,6 +142,10 @@ void ieee80211_inform_bss(struct wiphy *wiphy,
bss->valid_data |= IEEE80211_BSS_VALID_WMM;
}
+ if (cbss->channel->band == NL80211_BAND_6GHZ) {
+ bss->wmm_used = true;
+ }
+
if (update_data->beacon) {
struct ieee80211_supported_band *sband =
local->hw.wiphy->bands[rx_status->band];
--
2.51.0
