[PATCH] wifi: ath11k: Fix unexpected return buffer manager error for WCN6750/WCN6855

[Kalle Valo]

Balaji Pothunoori <quic_bpothuno at quicinc.com> writes:

> The following error messages were encountered while parsing fragmented RX
> packets for WCN6750/WCN6855:
>
> ath11k 17a10040.wifi: invalid return buffer manager 4
>
> This issue arose due to a hardcoded check for HAL_RX_BUF_RBM_SW3_BM
> introduced in 'commit 71c748b5e01e ("ath11k: Fix unexpected return buffer
> manager error for QCA6390")'
>
> For WCN6750 and WCN6855, the return buffer manager ID should be
> HAL_RX_BUF_RBM_SW1_BM. The incorrect conditional check caused fragmented
> packets to be dropped, resulting in the above error log.
>
> Fix this by adding a check for HAL_RX_BUF_RBM_SW1_BM.
>
> Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.2.0.c2-00258-QCAMSLSWPL-1
> Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-04479-QCAHSPSWPL_V1_V2_SILICONZ_IOE-1
>
> Fixes: 71c748b5e01e ("ath11k: Fix unexpected return buffer manager error for QCA6390")
> Signed-off-by: Balaji Pothunoori <quic_bpothuno at quicinc.com>

Acked-by: Kalle Valo <kvalo at kernel.org>

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