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Subject: Re: [PATCH] wifi: ath12k: indicate scan complete for scan canceled
 when
 scan running
From:   Kalle Valo <kvalo@kernel.org>
In-Reply-To: <20230906085746.18968-1-quic_wgong@quicinc.com>
References: <20230906085746.18968-1-quic_wgong@quicinc.com>
To:     Wen Gong <quic_wgong@quicinc.com>
Cc:     <ath12k@lists.infradead.org>, <linux-wireless@vger.kernel.org>,
        <quic_wgong@quicinc.com>
User-Agent: pwcli/0.1.1-git (https://github.com/kvalo/pwcli/) Python/3.11.2
Message-ID: <169591350295.3019228.15462824983218170799.kvalo@kernel.org>
Date:   Thu, 28 Sep 2023 15:05:04 +0000 (UTC)
Precedence: bulk

Wen Gong <quic_wgong@quicinc.com> wrote:

> ath12k prints "Received scan event for unknown vdev" when doing the
> following test:
> 1. trigger scan
> 2. wait 0.2 second
> 3. iw reg set is issued or 11d scan complete event is sent from firmware
> 
> Reason is:
> When iw reg set is issues or the 11d scan complete event is received, the
> new country code will be set to the firmware, and the new regdomain info
> indicated to ath12k, then the new channel list will be sent to the firmware.
> The firmware will cancel the current scan after receiving WMI_SCAN_CHAN_LIST_CMDID
> which is used for the new channel list, and the state of ath12k is
> ATH12K_SCAN_RUNNING, then ath12k_get_ar_on_scan_abort() returns NULL and
> ath12k_scan_event() returns at this point and does not indicate scan
> completion to mac80211.
> 
> Indicate scan completion to mac80211 and get rid of the "Received scan
> event for unknown vdev" print for the above case.
> 
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
> 
> Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
> Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>

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

870c6a72739c wifi: ath12k: indicate scan complete for scan canceled when scan running

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20230906085746.18968-1-quic_wgong@quicinc.com/

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