linux-kernel - [PATCH 0/3] wifi: ath11k: fix dest ring-buffer corruption

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Message-ID: <20250526114803.2122-1-johan+linaro@kernel.org>
Date: Mon, 26 May 2025 13:48:00 +0200
From: Johan Hovold <johan+linaro@...nel.org>
To: Jeff Johnson <jjohnson@...nel.org>
Cc: Miaoqing Pan <quic_miaoqing@...cinc.com>,
	linux-wireless@...r.kernel.org,
	ath11k@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Johan Hovold <johan+linaro@...nel.org>
Subject: [PATCH 0/3] wifi: ath11k: fix dest ring-buffer corruption

As a follow up to commits:

	6d037a372f81 ("wifi: ath11k: fix ring-buffer corruption") 
	ab52e3e44fe9 ("wifi: ath11k: fix rx completion meta data corruption")

add the remaining missing memory barriers to make sure that destination
ring descriptors are read after the head pointers to avoid using stale
data on weakly ordered architectures like aarch64.

Also switch back to plain accesses for the descriptor fields which is
sufficient after the memory barrier.

Johan
	

Johan Hovold (3):
  wifi: ath11k: fix dest ring-buffer corruption
  wifi: ath11k: use plain access for descriptor length
  wifi: ath11k: use plain accesses for monitor descriptor

 drivers/net/wireless/ath/ath11k/dp_rx.c | 41 +++++++++++++++++--------
 drivers/net/wireless/ath/ath11k/dp_tx.c |  3 ++
 drivers/net/wireless/ath/ath11k/hal.c   |  2 +-
 3 files changed, 32 insertions(+), 14 deletions(-)

-- 
2.49.0