Re: [PATCH] wifi: ath11k: fix rx completion meta data corruption

[Jeff Johnson]

On 3/21/2025 7:53 AM, Johan Hovold wrote:
> Add the missing memory barrier to make sure that the REO dest ring
> descriptor is read after the head pointer to avoid using stale data on
> weakly ordered architectures like aarch64.
> 
> This may fix the ring-buffer corruption worked around by commit
> f9fff67d2d7c ("wifi: ath11k: Fix SKB corruption in REO destination
> ring") by silently discarding data, and may possibly also address user
> reported errors like:
> 
> 	ath11k_pci 0006:01:00.0: msdu_done bit in attention is not set
> 
> Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41
> 
> Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
> Cc: stable@xxxxxxxxxxxxxxx	# 5.6
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=218005
> Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>

Does this supersede:
[PATCH] wifi: ath11k: fix ring-buffer corruption