linux-kernel - Re: [PATCH ath-next v4 4/9] wifi: ath12k: fix ATH12K_FLAG

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Message-ID: <1e31fe1c-333b-b841-5419-1c8be9a762dc@quicinc.com>
Date: Tue, 8 Apr 2025 15:22:54 +0530
From: Vasanthakumar Thiagarajan <quic_vthiagar@...cinc.com>
To: Aditya Kumar Singh <aditya.kumar.singh@....qualcomm.com>,
        Johannes Berg
	<johannes@...solutions.net>,
        Jeff Johnson <jjohnson@...nel.org>,
        "Karthikeyan
 Periyasamy" <quic_periyasa@...cinc.com>,
        Kalle Valo <kvalo@...nel.org>, Harshitha Prem <quic_hprem@...cinc.com>
CC: Jeff Johnson <jeff.johnson@....qualcomm.com>,
        <linux-wireless@...r.kernel.org>, <ath12k@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH ath-next v4 4/9] wifi: ath12k: fix ATH12K_FLAG_REGISTERED
 flag handling



On 4/8/2025 11:36 AM, Aditya Kumar Singh wrote:
> Commit a5686ae820fa ("wifi: ath12k: move ATH12K_FLAG_REGISTERED handling to
> ath12k_mac_register()") relocated the setting of the ATH12K_FLAG_REGISTERED
> flag to the ath12k_mac_register() function. However, this function only
> accesses the first device (ab) via ag->ab[0], resulting in the flag being
> set only for the first device in the group. Similarly,
> ath12k_mac_unregister() only unsets the flag for the first device. The flag
> should actually be set for all devices in the group to avoid issues during
> recovery.
> 
> Hence, move setting and clearing of this flag in the function
> ath12k_core_hw_group_start() and ath12k_core_hw_group_stop() respectively.
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
> 
> Fixes: a5686ae820fa ("wifi: ath12k: move ATH12K_FLAG_REGISTERED handling to ath12k_mac_register()")
> Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@....qualcomm.com>

Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@....qualcomm.com>