[PATCH 05/13] wifi: ath12k: fix fetching MCBC flag for QCN9274

[Jeff Johnson]

On 10/30/2023 3:26 PM, Raj Kumar Bhagat wrote:
> In QCN9274, RX packet's multicast and broadcast(MCBC) flag is fetched
> from RX descriptor's msdu_end info5 member but it is not correct
> for QCN9274. Due to this with encryption, ARP request packet is wrongly
> marked as MCBC packet and it is sent to mac80211 without setting
> RX_FLAG_PN_VALIDATED & RX_FLAG_DECRYPTED flag. This results in packet
> getting dropped in mac80211. Hence ping initiated from station to AP
> fails.
> 
> Fix this by fetching correct MCBC flag in case of QCN9274.
> For QC9274 MCBC flag should be fetched from RX descriptor's mpdu_start
> info6 member.
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00188-QCAHKSWPL_SILICONZ-1
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
> 
> Fixes: 8f04852e90cb ("wifi: ath12k: Use msdu_end to check MCBC")
> Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag at quicinc.com>

Acked-by: Jeff Johnson <quic_jjohnson at quicinc.com>