| Message ID | 20250526114803.2122-1-johan+linaro@kernel.org |
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Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 659251F5430; Mon, 26 May 2025 11:48:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748260104; cv=none; b=X9qxUbmXXBtn4fKR+hjWcN5B7VVKTKnhMYiWwds4rjb0KV1cAnIhpHNwEpSEZjm3bRKSDm9NKl8cOELMJh8HTuWmDamkOmL5fLG8LWFmwZ+P22Zkrh+M1W88eg0Mv4OTFuS7/Dyz+0tCP2Gc0B/yMGv/FSfx1pq5RvOcR23W4pM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748260104; c=relaxed/simple; bh=mjvrQsWSO1J2H28FWM14OXB9euTqINfAytRW7cgyZ0U=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=riEbCNATnH44wShEnvZEvnwHoOfx9lTPCEZnntJ1gyLUwDFIZkFLsFa6QBuZKcpsa5CFS/igGUAJly2hsSx7+Nj4Tuwhko8IcgIhzTk0kk9g7/GjUWCUsejrtwAf98O7jrBwklYS6xw9Wd75/Saj8a1jGQweXBUhrkmhUkj9blY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=V6Zpfet+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="V6Zpfet+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D0C73C4CEF4; Mon, 26 May 2025 11:48:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748260103; bh=mjvrQsWSO1J2H28FWM14OXB9euTqINfAytRW7cgyZ0U=; h=From:To:Cc:Subject:Date:From; b=V6Zpfet+GvE0ZyXQlCnLklLek4ilDIFtwmdSki7VZ5P2Gh29oZSXOEA7A2zs4/0wR k9VBpfTDBAz+7ZGBdVCqDH3ZKrSZbiAz9yuNkhNP15OssKm2/1gdZpLdQnKRiZYe1r fgxVTiuLB1TbEUgX677owKsxTwmdCjx3xRqhDmoTF/vcenvci8FKoAe5PN8vbLHlCC OzId22sIJflgJvJ3rIf43OcZdH/nayhJNDCqT9CK/jEdBB2q+EG4zn7503ebeKVu94 7O021o5Eg0yQn9tPlxborkENhqo40ktOgdL7hZpBSAH80cMMARsDwTjeJEsjA+/VjS HN4bf2Z9iLGlw== Received: from johan by xi.lan with local (Exim 4.97.1) (envelope-from <johan+linaro@kernel.org>) id 1uJWJc-000000000Yq-29Dy; Mon, 26 May 2025 13:48:25 +0200 From: Johan Hovold <johan+linaro@kernel.org> To: Jeff Johnson <jjohnson@kernel.org> Cc: Miaoqing Pan <quic_miaoqing@quicinc.com>, linux-wireless@vger.kernel.org, ath11k@lists.infradead.org, linux-kernel@vger.kernel.org, Johan Hovold <johan+linaro@kernel.org> Subject: [PATCH 0/3] wifi: ath11k: fix dest ring-buffer corruption Date: Mon, 26 May 2025 13:48:00 +0200 Message-ID: <20250526114803.2122-1-johan+linaro@kernel.org> X-Mailer: git-send-email 2.49.0 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: <linux-wireless.vger.kernel.org> List-Subscribe: <mailto:linux-wireless+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-wireless+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit |
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wifi: ath11k: fix dest ring-buffer corruption
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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(-)