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Subject: Re: [PATCH] ath11k: fix number of VHT beamformee spatial streams
From:   Kalle Valo <kvalo@kernel.org>
In-Reply-To: <20220616173947.21901-1-jesus.manzano@galgus.net>
References: <20220616173947.21901-1-jesus.manzano@galgus.net>
To:     Jesus Fernandez Manzano <jesus.manzano@galgus.net>
Cc:     ath11k@lists.infradead.org, linux-wireless@vger.kernel.org,
        jesus.manzano@galgus.net
User-Agent: pwcli/0.1.1-git (https://github.com/kvalo/pwcli/) Python/3.7.3
Message-ID: <166383571956.27663.10307320275505026019.kvalo@kernel.org>
Date:   Thu, 22 Sep 2022 08:35:21 +0000 (UTC)
Precedence: bulk

Jesus Fernandez Manzano <jesus.manzano@galgus.net> wrote:

> The number of spatial streams used when acting as a beamformee in VHT
> mode are reported by the firmware as 7 (8 sts - 1) both in IPQ6018 and
> IPQ8074 which respectively have 2 and 4 sts each. So the firmware should
> report 1 (2 - 1) and 3 (4 - 1).
> 
> Fix this by checking that the number of VHT beamformee sts reported by
> the firmware is not greater than the number of receiving antennas - 1.
> The fix is based on the same approach used in this same function for
> sanitizing the number of sounding dimensions reported by the firmware.
> 
> Without this change, acting as a beamformee in VHT mode is not working
> properly.
> 
> Tested-on: IPQ6018 hw1.0 AHB WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1
> Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1
> 
> Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
> Signed-off-by: Jesus Fernandez Manzano <jesus.manzano@galgus.net>
> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>

Patch applied to ath-next branch of ath.git, thanks.

55b5ee3357d7 wifi: ath11k: fix number of VHT beamformee spatial streams

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20220616173947.21901-1-jesus.manzano@galgus.net/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches