[PATCH ath-next v3] wifi: ath12k: Abort scan before removing link interface to prevent duplicate deletion

[Vasanthakumar Thiagarajan]

On 4/18/2025 12:10 PM, Lingbo Kong wrote:
> Currently, when ath12k performs the remove link interface operation, if
> there is an ongoing scan operation on the arvif, ath12k may execute the
> remove link interface operation multiple times on the same arvif. This
> occurs because, during the remove link operation, if a scan operation is
> present on the arvif, ath12k may receive a WMI_SCAN_EVENT_COMPLETED event
> from the firmware. Upon receiving this event, ath12k will continue to
> execute the ath12k_scan_vdev_clean_work() function, performing the remove
> link interface operation on the same arvif again.
> 
> To address this issue, before executing the remove link interface
> operation, ath12k needs to check if there is an ongoing scan operation on
> the current arvif. If such an operation exists, it should be aborted.
> 
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
> 
> Signed-off-by: Lingbo Kong <quic_lingbok at quicinc.com>
> Tested-by: Lorenzo Stoakes <lorenzo.stoakes at oracle.com>

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