[PATCH ath-next] wifi: ath12k: Fix peer lookup in ath12k_dp_mon_rx_deliver_msdu()

[Baochen Qiang]

On 7/24/2025 12:05 PM, Aishwarya R wrote:
> From: Hari Chandrakanthan <quic_haric at quicinc.com>
> 
> In ath12k_dp_mon_rx_deliver_msdu(), peer lookup fails because
> rxcb->peer_id is not updated with a valid value. This is expected
> in monitor mode, where RX frames bypass the regular RX
> descriptor path that typically sets rxcb->peer_id.
> As a result, the peer is NULL, and link_id and link_valid fields
> in the RX status are not populated. This leads to a WARN_ON in
> mac80211 when it receives data frame from an associated station
> with invalid link_id.
> 
> Fix this potential issue by using ppduinfo->peer_id, which holds
> the correct peer id for the received frame. This ensures that the
> peer is correctly found and the associated link metadata is updated
> accordingly.
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
> 
> Fixes: bd00cc7e8a4c ("wifi: ath12k: replace the usage of rx desc with rx_info")
> Signed-off-by: Hari Chandrakanthan <quic_haric at quicinc.com>
> Signed-off-by: Aishwarya R <aishwarya.r at oss.qualcomm.com>

Reviewed-by: Baochen Qiang <baochen.qiang at oss.qualcomm.com>