Jouni Malinen <jouni@xxxxxxxxxxxxxx> writes: > From: Wen Gong <wgong@xxxxxxxxxxxxxx> > > Commit "ath11k: support SMPS configuration for 6 GHz" changed "if > (ht_cap & WMI_HT_CAP_DYNAMIC_SMPS)" to "if (ht_cap & > WMI_HT_CAP_DYNAMIC_SMPS || ar->supports_6ghz)" which means > NL80211_FEATURE_DYNAMIC_SMPS is enabled for all chips which support 6 > GHz. However, WCN6855 supports 6 GHz but it does not support feature > NL80211_FEATURE_DYNAMIC_SMPS, and this can lead to MU-MIMO test failures > for WCN6855. > > Disable NL80211_FEATURE_DYNAMIC_SMPS for WCN6855 since its ht_cap does > not support WMI_HT_CAP_DYNAMIC_SMPS. > > Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 > > Signed-off-by: Wen Gong <wgong@xxxxxxxxxxxxxx> > Signed-off-by: Jouni Malinen <jouni@xxxxxxxxxxxxxx> [...] > --- a/drivers/net/wireless/ath/ath11k/mac.c > +++ b/drivers/net/wireless/ath/ath11k/mac.c > @@ -7570,7 +7570,8 @@ static int __ath11k_mac_register(struct ath11k *ar) > * for each band for a dual band capable radio. It will be tricky to > * handle it when the ht capability different for each band. > */ > - if (ht_cap & WMI_HT_CAP_DYNAMIC_SMPS || ar->supports_6ghz) > + if (ht_cap & WMI_HT_CAP_DYNAMIC_SMPS || > + (ar->supports_6ghz && !ab->hw_params.check_dynamic_smps)) > ar->hw->wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS; > > ar->hw->wiphy->max_scan_ssids = WLAN_SCAN_PARAMS_MAX_SSID; This hunk failed, in the pending branch as I don't have that ar->supports_6ghz check. I'll drop this patch 3 for now, let's revisit after my queue of ath11k patches is smaller. -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
