Jouni Malinen <jouni@xxxxxxxxxxxxxx> wrote:
> Commit 6f4d70308e5e ("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. Enable the feature only on QCN9074 as that's
> the only other device supporting 6 GHz band.
>
> 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>
> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Patch applied to ath-next branch of ath.git, thanks.
82c434c10340 ath11k: set correct NL80211_FEATURE_DYNAMIC_SMPS for WCN6855
--
https://patchwork.kernel.org/project/linux-wireless/patch/20210914163726.38604-3-jouni@xxxxxxxxxxxxxx/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
