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Subject: Re: [PATCH v2] ath11k: skip sending vdev down for channel switch
From:   Kalle Valo <kvalo@codeaurora.org>
In-Reply-To: <20211118095901.8271-1-quic_wgong@quicinc.com>
References: <20211118095901.8271-1-quic_wgong@quicinc.com>
To:     Wen Gong <quic_wgong@quicinc.com>
Cc:     <ath11k@lists.infradead.org>, <linux-wireless@vger.kernel.org>,
        <quic_wgong@quicinc.com>
User-Agent: pwcli/0.1.0-git (https://github.com/kvalo/pwcli/) Python/3.7.3
Message-ID: <163759167100.17469.7976011024924316593.kvalo@codeaurora.org>
Date:   Mon, 22 Nov 2021 14:34:34 +0000 (UTC)
Precedence: bulk

Wen Gong <quic_wgong@quicinc.com> wrote:

> The ath11k driver currently sends vdev down to the firmware before
> updating the channel context, which is followed by a vdev restart
> command.
> 
> Sending vdev down is not required before sending a vdev restart,
> because the firmware internally does vdev down when ath11k sends
> a vdev restart command.
> 
> Firmware will happen crash while channel switch without this change.
> 
> Hence skip the vdev down command sending when updating the channel
> context and then fix the firmware crash issue.
> 
> Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
> 
> Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

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

a4146249a333 ath11k: skip sending vdev down for channel switch

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20211118095901.8271-1-quic_wgong@quicinc.com/

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