From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 E19AD3D5255 for ; Tue, 10 Mar 2026 17:55:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773165343; cv=none; b=GDcMENdtpQtw40R81r6Log6wSy5Y8KhDnENMJg6hHi+P9RiUKf/YAOM0DFVn5WF+G33B1/GPgaq8lIPKyIcYsU9VZa8MKgnKHT+nqE2SzFFHrxCi+onGErvcJrmnjLMulo/TCQz7fwbJShW6JxJTCd6+gADBuqeLrd8ZxinBnCQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773165343; c=relaxed/simple; bh=1U/MXZgzYo36oXoS3nhXWlNwLYBqSXrPA38k2vw+XTg=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=FZk3dO/L8aPyz45LifRpi9Zuw+AKn0Icw5wdbe/Spdho3ic5swdgqqT4f0xoxDnOzYQS9HUQf73ioscd2xLqv+etqTbcD6eMdTqSzZKCCXEGGgcD4FdIRAHuruarwaCgRjjTf0VOnzVMT7Z1lX70sSPPyFpxCKQvWF/opJsRf3k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=g4L78VtF; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=UFBtqoOt; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="g4L78VtF"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="UFBtqoOt" Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 62AEEwaf1863186 for ; Tue, 10 Mar 2026 17:55:41 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= uivpYYPu728tHmFs9Lf4h3GhDtM5MMCXZhENiZzX/Eg=; b=g4L78VtFmmtBGHDj v+SJZMx1SRfAqDfqUdoMbRb5LEm7ZWDgd0eMEfPNSnD16juztp9WylU2vTYyG/Rm HxDnghmUHK8LTQ5gR/Xq2kY6h9yvZJs1CUVePkolIiMCoIZruoP1XCewG9ZbxZEq TUfBBVPt8HCjny0xd8CHmIPWHMXcpyIk0wjxZZGwrZdnBw0V46u8Y3+P/xGnBXO8 GiNGFNO3UO70iOGkgRN8i+I6DhrXPhywgV9zrJlI7NxsHQQdQEALpoL4VmWANFvY JoCzvXzf/2qUnIzcc5zH1u26ijr98AcE0H9DCsmmHvJe5eA3wmsgFsmjseL7tt4W 8TRYsw== Received: from mail-oa1-f69.google.com (mail-oa1-f69.google.com [209.85.160.69]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4ctmw80xjs-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Tue, 10 Mar 2026 17:55:41 +0000 (GMT) Received: by mail-oa1-f69.google.com with SMTP id 586e51a60fabf-415583a6862so1163296fac.1 for ; Tue, 10 Mar 2026 10:55:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1773165340; x=1773770140; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:content-language:from :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=uivpYYPu728tHmFs9Lf4h3GhDtM5MMCXZhENiZzX/Eg=; b=UFBtqoOtXPsiPfewOci3S+91ePSL9d46oD1oR8maR7nOnjiNw4MLRNO4TSPhwqN6JN 9bToSR+67BynNbTs3fXR0yMLlMzhc11L8QcPDAUWChv7gSjZyb6SkddsXJz8Qm7mVMLx pHxLoKAtF3Usgs3yx+aQq/m2HxQJ5r2dkWhcIDwg/lt5q9ldecbgbSX1to3wGIFsLrNO C+/PfH1rqwJk1JzPV5ubRbrNnUPzzakd11G7Wwi1cF1sWOYr1ue3Fz6ZTrOtdsXLkwLl tffbZYzxtP4fEPQLgK0EXnCnmWuKjQ0quPbrhMpPHsTLXmdHyYLGiZ8l5iOmoBX4+EmX p0JA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773165340; x=1773770140; h=content-transfer-encoding:in-reply-to:content-language:from :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=uivpYYPu728tHmFs9Lf4h3GhDtM5MMCXZhENiZzX/Eg=; b=f3VqnyxuBGvGUDJ6DSGgfBO9Gay3+q7pZUyu5iD8i6SeFHsKYHRcYZdmefyluYOnVO hhdaFCUjcycC1WGbq3e7ZSkPCvYfbo0w8Gzg9OG4yZ1+u031dICtdU8zYjWQIEOlhZEK OcZYg6lzgjws8Fo/moi1yykfnozt3optFlL1hZpk3+MQjggv0cXqV7O+m5+8mp4HDrgC PGdWfwsw/v1+jXUw/HxT3lyLdVEHmePzzuYT/opIstRU32jYvZtsgUn685ltRgz+C5Qg KRiFGT4eoEzKsp4dEzzQ0OK+/N6PMy/mByQdSi4hyyMj+Vy9koRYAJHB9JE+Vjyllmp5 a/og== X-Forwarded-Encrypted: i=1; AJvYcCVleUtJNZ458vHs5QiHX5aNQruHqkBa+2zKCuaBDCl/x9POiuHIASOhx7qAJCEnGOtAH6BLNp4oVS3UGco=@vger.kernel.org X-Gm-Message-State: AOJu0Yy63lefnuqROS+pBRXSRcO8c60l188O9GFgg4ckFDC90wdxALUG gri8aiBnbG/o4O4omoBADlGkNy5ePHrRR66qJp+OJaahvnki8y0AkUu+XRjPwYuPzKHBc0jkcoZ U/PK4V8h/biVo/E3QpVJGdexv51lgzRMHfasByimp0jc2DJut/caLeFA32Z9I2Y59uBQ= X-Gm-Gg: ATEYQzyBUxkpy+yD5yLIL4eUCiwY5hEnpFGZMHaYI3t+Jbhp0Hf1OD7AG1/kX0EWfCq qU5rrJkKeUZbo2UvUd9Dsi7jxB9/+uk1OUDwcT2IAtotovJACNlNTRstB1jQ/9JrgcnRk/saXc3 oyJOsVHG8MLgVApDq2TxYhnixmTIKidzsNlz2xdWV6eDjFMUq/Vb+cSNqwI1W4YmWRAvBiYEjrM JXgtzjLSW0XCPNFiKsROIe8+pSvToxagOvYco15GIPJCKnTsSHCIq6txMvLtoddqCKLk029+JiI aQbG3yHz9m4lXrY6AtLfSECQczoLvOuCb9oDUzT2orJnOQ3HAkplm49Ep+mh6ZVhFkKVQUgHtPx 61YElJ6OoAEelrETf+3qpF1iibnhd30MFLS+QKm03qPv4F+f8xp3qlWE1XAfaAVDZ4a+16MYKWx feJvCLHA== X-Received: by 2002:a05:6870:178c:b0:417:3ee0:59e4 with SMTP id 586e51a60fabf-41756808056mr2464509fac.5.1773165340152; Tue, 10 Mar 2026 10:55:40 -0700 (PDT) X-Received: by 2002:a05:6870:178c:b0:417:3ee0:59e4 with SMTP id 586e51a60fabf-41756808056mr2464489fac.5.1773165339655; Tue, 10 Mar 2026 10:55:39 -0700 (PDT) Received: from [10.227.110.203] (i-global254.qualcomm.com. [199.106.103.254]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-41756dcb1e8sm3402971fac.16.2026.03.10.10.55.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 10 Mar 2026 10:55:38 -0700 (PDT) Message-ID: <8aaacbb2-8ce6-42b4-923d-78491df6d31a@oss.qualcomm.com> Date: Tue, 10 Mar 2026 10:55:37 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3] wifi: ath12k: fix endianness handling for SRNG ring pointer accesses To: Alexander Wilhelm , Jeff Johnson Cc: Baochen Qiang , ath12k@lists.infradead.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260119073923.764245-1-alexander.wilhelm@westermo.com> From: Jeff Johnson Content-Language: en-US In-Reply-To: <20260119073923.764245-1-alexander.wilhelm@westermo.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: Fo_bMPvVhZu3mozFjbmiWeXSfyEGAT9K X-Proofpoint-GUID: Fo_bMPvVhZu3mozFjbmiWeXSfyEGAT9K X-Authority-Analysis: v=2.4 cv=PJECOPqC c=1 sm=1 tr=0 ts=69b05b1d cx=c_pps a=zPxD6eHSjdtQ/OcAcrOFGw==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=N9GNhs4bAAAA:8 a=x4LiasA2zIWtCAHPNq4A:9 a=QEXdDO2ut3YA:10 a=y8BKWJGFn5sdPF1Y92-H:22 a=PZhj9NlD-CKO8hVp7yCs:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzEwMDE1NiBTYWx0ZWRfX1RleUB3sk/pk RD7/7M5Lr957RA9sy45SRIlsbfNzIectpE4O8rSCBhZupFgpQyIT+us5RDbnR6wQdJQa3mBiiBe Fb5+ZvBnNu0arBUB6ooV02xonz6QJlY2Q438zXZZ2Pr/njvWnv1T/V1F+C5+/uG7uiSM4PUiQkn JGXbwnC11Kj/D6NV92Rt3ofxyf2mvJ3dXhsjl1sk45DEqgyUnKhJ+HV8BYSybY0BIqCiaIkBy7d 1T07Oz5hVGom6EH/1RDYyYkZR3Z+5TTBdLfimwUm7HsPgsRviJOtK0T51tjhrtidtQdf6SxvFoC fN8WqT7WqdRRylnkaRvlVOdMIG8o6/u8GBmN0RjbdH/Xmo3S1E/klqQPKcYFPB8A1xMSo1zdEGK hGt9nSKZ82GUjuonoblx1J9bPMdUNo/CPTwn4UhKmg0r3PwpoZQ+tTNExQr03q4leSwDMCplpG2 nsOfCx9pVga6iv/mvXQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-10_04,2026-03-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 impostorscore=0 malwarescore=0 spamscore=0 phishscore=0 lowpriorityscore=0 clxscore=1015 priorityscore=1501 adultscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603100156 On 1/18/2026 11:39 PM, Alexander Wilhelm wrote: > The SRNG head and tail ring pointers are stored in device memory as > little-endian values. On big-endian systems, direct dereferencing of these > pointers leads to incorrect values being read or written, causing ring > management issues and potentially breaking data flow. > > This patch ensures all accesses to SRNG ring pointers use the appropriate > endianness conversions. This affects both read and write paths for source > and destination rings, as well as debug output. The changes guarantee > correct operation on both little- and big-endian architectures. > > Signed-off-by: Alexander Wilhelm > --- > Changes in v3: > - Rebase on latest 'ath' master > - Use always 'le32_to_cpu()' macro for conversions > > Changes in v2: > - Set '__le32 *' type for 'hp_addr/tp_addr' in both 'dst_ring' and 'src_ring' > --- > drivers/net/wireless/ath/ath12k/hal.c | 37 +++++++++++++++------------ > drivers/net/wireless/ath/ath12k/hal.h | 8 +++--- > 2 files changed, 25 insertions(+), 20 deletions(-) I really hope to get your changes in. With your changes sparse reports: drivers/net/wireless/ath/ath12k/wifi7/hal.c:322:50: warning: incorrect type in assignment (different base types) drivers/net/wireless/ath/ath12k/wifi7/hal.c:322:50: expected restricted __le32 [usertype] *hp_addr drivers/net/wireless/ath/ath12k/wifi7/hal.c:322:50: got unsigned int [usertype] * drivers/net/wireless/ath/ath12k/wifi7/hal.c:333:50: warning: incorrect type in assignment (different base types) drivers/net/wireless/ath/ath12k/wifi7/hal.c:333:50: expected restricted __le32 [usertype] *tp_addr drivers/net/wireless/ath/ath12k/wifi7/hal.c:333:50: got unsigned int [usertype] * drivers/net/wireless/ath/ath12k/wifi7/hal.c:387:42: warning: incorrect type in assignment (different base types) drivers/net/wireless/ath/ath12k/wifi7/hal.c:387:42: expected restricted __le32 [usertype] *tp_addr drivers/net/wireless/ath/ath12k/wifi7/hal.c:387:42: got unsigned int [usertype] * drivers/net/wireless/ath/ath12k/wifi7/hal.c:390:42: warning: incorrect type in assignment (different base types) drivers/net/wireless/ath/ath12k/wifi7/hal.c:390:42: expected restricted __le32 [usertype] *hp_addr drivers/net/wireless/ath/ath12k/wifi7/hal.c:390:42: got unsigned int [usertype] * I'm also getting checkpatch issues: drivers/net/wireless/ath/ath12k/hal.c:503: Lines should not end with a '(' drivers/net/wireless/ath/ath12k/hal.c:531: Lines should not end with a '(' drivers/net/wireless/ath/ath12k/hal.c:551: Lines should not end with a '(' Can you address these issues? /jeff