From nobody Wed Apr 8 04:41:33 2026 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (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 1EDCF39DBC4 for ; Tue, 10 Mar 2026 15:44:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773157490; cv=none; b=YglKjyWG0Qjwo0L8ZZg4lleILN6Iz8ECavCqjHnyrMyqS1rm4w/QO0xm7cyqqukoSngXVPkuRMshBPrQvK3Km7LCFiydWBDq6GOztX+ExiLNJtKZLOrM+D6LosE7QfBFK0hb18iT5aiK3+pkbcYIIWYk88AGZPb+k5KxB9avd6o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773157490; c=relaxed/simple; bh=aUMoNrCGDXfli/Niiqe45turoruXO4WeijyijWZBwgw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=tx66F2F20doeqH0x9NuPgnqZL5o6E0NN6gkLBE5NDjCgAh2qkI/PyUXod6+k+sQvNX0j1e3j6/bX3u13ug7t7Gt54k7+Mu1LyJ1emzOwBveOraUh2hlqDlcoXLPXWd3B2hiCH6dFYVob1Sz0Zf1InHTVwWaHT/ikQNoqU0VIY1k= 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=Ctd0QWQF; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=CFVTsFO4; arc=none smtp.client-ip=205.220.180.131 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="Ctd0QWQF"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="CFVTsFO4" Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 62ACaSlL3771861 for ; Tue, 10 Mar 2026 15:44:48 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= YTHMQ74pG40cf2TThEo/dQpxpxcnmIMpmWq++2akSHc=; b=Ctd0QWQFetJCAMd9 RKKESClafTTT7T+OyEeNzaYVcWM5LtPvdgZDLcYEyXHDZu0LqDGZ2zxbKjGOylUX CdrzchUj5NEPIEJUzhoyqM6egLF9WkT6+DOyZhT+3ap3fuVBWxP4SqVfWBjTxtIQ 2/QOkZAWOC9qVYF9VBaNxha3TcqfYnwd80zMeUn/rlyh1owZwB434ldUy/u6ygM9 eMUQ2LXBnsDYig85g6OTISL5g9BSujiCLvAyldjAikbhjyN4n9T6xwE7JXr23jVo lfIJscceHxLownAtMUFKY+DNPniz2HQUfuO0LZfPGmlQRs00w39qwopdZu7MVoLQ 5e0sOw== Received: from mail-qk1-f199.google.com (mail-qk1-f199.google.com [209.85.222.199]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4ctfcj1sym-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Tue, 10 Mar 2026 15:44:48 +0000 (GMT) Received: by mail-qk1-f199.google.com with SMTP id af79cd13be357-8cd8b37d4b2so1382611085a.3 for ; Tue, 10 Mar 2026 08:44:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1773157487; x=1773762287; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=YTHMQ74pG40cf2TThEo/dQpxpxcnmIMpmWq++2akSHc=; b=CFVTsFO4U2Exx/TN+VN7u49EboLRtUSBV4TV8apbAXof9ogZp7fPelNedJalJS0Ijy XsmLPQNxVM9xe5BWtVUjETAvbz6uRCvZGoEJKb5QyCA9vyvoqA9H92uYeSvHBu3s+srI 32ljta6tGgLX8vxGnKaTL2GMaE9oCX7WDeekGtmVmiOzt1c26uo4uc1zWspfCJwpmJJy IzWbIFSxSjAknh2TEvn/56aFVSg7FUBjooac05MloFrBc0Lbty0W8L0N0JTXQTRpU5y0 eog8uRiSjJ1xC8bt0gGaNaxWqIep6kwIFC/UkAzYWajajHXzijz/4jOljy1j32pOgKXf YzQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773157487; x=1773762287; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=YTHMQ74pG40cf2TThEo/dQpxpxcnmIMpmWq++2akSHc=; b=FMLi02YeOTr4dlat+xqn8YxTM4ACYi2g1WlmCwsHjecrOsT3PyNNFVn0MpJPV1d55y 6brmmX/HmteAK/4jYneHtA1yGtV2wNoj8Z/ZaknuzJziQqX7VElTNzEMk34nyy9makmx puXE9Y9UDx1vgR4dd4wzhlAQLJZBM2o9o8SBnRGi9DZI4067P+muk8s5f60kKsPjajfn W7b5UsMdJ3+rqVCo4sdAf6ln1dvPxCLc8u5JOCCSGSlsW4R4Zrp/PYQfOyBBXrtGl3Hi Zg+V/2M97nTXoflB6DzeQURR/1s+KvgPP8lWzt1srF6aBKgAubekSBZa5jKh/P9wzg+z amWA== X-Forwarded-Encrypted: i=1; AJvYcCVkcYuClkmqeUTeu3y0KrVRArvu+l20BHvdkG28+XzC00tH2EaDpwWoUHzQo2qkv03jyrfBpO2hdE8xXIw=@vger.kernel.org X-Gm-Message-State: AOJu0YxosxWgIn3fFqRS/nhOkHSm8nR82nT00LVzJmbgMwt4kegs+6xn 3Eqfau4Xu5cXu7y6xmlxj8CK8tV5gimMy21ydDVYw8aTHNua6s6cIx0bzNQr4mHv2+cPohLhOot pm8N56QbiJX2VTOpdRnoPmHDz5UDrU5HxC/FxOe2LHOGlXSsJVu7f5aVg0t/RPRWVRCY= X-Gm-Gg: ATEYQzyNh0/ux6pCcnljEjVZ7VRyKoFnxtLTlYMmmqiMwuiE/He2bmGsjODodCvTMHg mKFar58Rhqe+xJvYvRu3ppzTF3cXeBrHSTcAUPk3BX8ww+SFbXsiNR1HY9FPq7/WqZ4IeyPPt6P vpcnoWCOfNP3r8kSa92n0Ggz5KJUSUw8Ce5uYY0Y1/TXcAprxOX8htpAPwKWrL5yk+AuOMCF2sQ HpZyLSzltVz9z5DGn4m36ZbgPtMVFBsq05cslZxRiRVdlWe9GNXUXyFpy3orbHf9WpLd/LscUm9 LURzBooQX4LJgbWh2HdFMtokpvIq6/zjWnT1Wy2PeULkSsE14fmTP0jh5muXwN/Lh2KHKDi/+RC rPRYq3+yXYuKICtKs5rj7uxPMcn5S62x9eHMQBejN0vgPKLYxDVu2 X-Received: by 2002:a05:620a:4156:b0:8cd:942e:82de with SMTP id af79cd13be357-8cd942e8666mr396525085a.7.1773157487470; Tue, 10 Mar 2026 08:44:47 -0700 (PDT) X-Received: by 2002:a05:620a:4156:b0:8cd:942e:82de with SMTP id af79cd13be357-8cd942e8666mr396521085a.7.1773157486975; Tue, 10 Mar 2026 08:44:46 -0700 (PDT) Received: from brgl-qcom.local ([2a01:cb1d:dc:7e00:47e6:5a62:7ef7:9a28]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-439dad8d968sm35991600f8f.6.2026.03.10.08.44.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Mar 2026 08:44:46 -0700 (PDT) From: Bartosz Golaszewski Date: Tue, 10 Mar 2026 16:44:15 +0100 Subject: [PATCH v12 01/12] dmaengine: constify struct dma_descriptor_metadata_ops Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260310-qcom-qce-cmd-descr-v12-1-398f37f26ef0@oss.qualcomm.com> References: <20260310-qcom-qce-cmd-descr-v12-0-398f37f26ef0@oss.qualcomm.com> In-Reply-To: <20260310-qcom-qce-cmd-descr-v12-0-398f37f26ef0@oss.qualcomm.com> To: Vinod Koul , Jonathan Corbet , Thara Gopinath , Herbert Xu , "David S. Miller" , Udit Tiwari , Daniel Perez-Zoghbi , Md Sadre Alam , Dmitry Baryshkov , Peter Ujfalusi , Michal Simek , Frank Li Cc: dmaengine@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, brgl@kernel.org, Bartosz Golaszewski , Bartosz Golaszewski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2241; i=bartosz.golaszewski@oss.qualcomm.com; h=from:subject:message-id; bh=aUMoNrCGDXfli/Niiqe45turoruXO4WeijyijWZBwgw=; b=owEBbQKS/ZANAwAKAQWdLsv/NoTDAcsmYgBpsDxfpzbSkPVeH8GuqwtDjU20JoSJAxWLVFA0I mQrecpEKTSJAjMEAAEKAB0WIQSR5RMt5bVGHXuiZfwFnS7L/zaEwwUCabA8XwAKCRAFnS7L/zaE w4sREACIA03KZ/CBJdia1awbSxWwi7n+erMVmVCcbDu/vG+FMOdUidu05QmYoTjGqfMoXdCdXxJ rcYiXl/sD8miZQHtKA0HRRvFxCi2YqMLAh3gF4FzPKQkjMUiKoUCNa3aVF9iN7K3bdJIhoj6ndN eUKeMLsntE2yBGua7kAGLZlUClD1p0D00O7bXVg30uYwaNf7eeUxgkHqg3odnYmW98E/9oyrarx D2puHRcSMsjtZuqU3thklNrcBFmtQ59wI1pBohrI1JwVhwEAuU9sYrMP1aFYoUYNo4sORQX/Lo2 CxKVfIUVmQGPKWTMUTmauELxQBjtFuTYyUzizOI6Q1lpWnH1C40djj4P/5fFt/oVsDEkFsz6hjK e3WgGI1MrXbtENuV5mhOgrvpD0rAGS81d7ZR6Qwx7o6Y6P/q6JyPc/jKyX+rCFlMb+fGS4jlFME 4DcickTC1l10RsqAQrq0QvhOI2Tl80SuUNo5tbQnEOvonIWuFp3zyrsCg9Az+AsK7eG7LeBZCEm VZC96igNwdZB+8fgQHU6HzIzuSkiM/I2gC4ZirvMPK1upYp+0EekQNlfeJ/Ri5l2innh2eQHl9Y OU7Nm8HFyMlzCD+fR3snB7DQtrddKHmEQ4xsyyyi3nB3s5vwK6Iuw2vN0FP6Wvj4D2vANS2iz12 LRCPWsxm4P1XLpw== X-Developer-Key: i=bartosz.golaszewski@oss.qualcomm.com; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 X-Authority-Analysis: v=2.4 cv=H7fWAuYi c=1 sm=1 tr=0 ts=69b03c70 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=EUspDBNiAAAA:8 a=XeVHrwws4l7kqE2Ex6IA:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-GUID: qFFS8mKLOtRY1kWeWEQ5D53JHgAH06jf X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzEwMDEzNyBTYWx0ZWRfX80T+GyeRyaFI OJZt+w0aZqKEERhGpr19n+dhnrw27Cl3GWOfQT08tKCiW4a17o7GjJP7aCCPGzfYv4lYL4NWwmC mTm91aG87HMIalqvPtUrEk1KkbyOdDSSsUoQvrcFeyO4dwdhu8XUtNryAXQZ4xhvIUiDqZd41pQ GXB9zVXWJ/2GRz2gUBUB6ffegFWL9xHaKhuCvWtEGZq9UeURGdjGA8CP1Sqkzq4YpOBR7/s2UbD G3UXPbcGsKEY1x/1AqMQLgs+niciK+yAwGo9/qU1sNa1J8eLuokNkuB5gtVCtuX6mZw2Rt16xan +L2Wi6LWhQ1LD2P74DuX3kxp1MgBsbenxFJ+dSuUrJqjtF4D5i8KYd4enZPkUY68PoGbUETFmmJ QUjhBi3aVhgy6MF1Z5AS6XpHXsvWOenaXIkK8Nk5hlcHc3qbaHytnbsGWfXpqL8Uc0j9Tsab2np Q/nyB2IjcqqDMuVVGNg== X-Proofpoint-ORIG-GUID: qFFS8mKLOtRY1kWeWEQ5D53JHgAH06jf 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_03,2026-03-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 impostorscore=0 phishscore=0 suspectscore=0 bulkscore=0 lowpriorityscore=0 adultscore=0 priorityscore=1501 spamscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603100137 There's no reason for the instances of this struct to be modifiable. Constify the pointer in struct dma_async_tx_descriptor and all drivers currently using it. Signed-off-by: Bartosz Golaszewski Reviewed-by: Manivannan Sadhasivam --- drivers/dma/ti/k3-udma.c | 2 +- drivers/dma/xilinx/xilinx_dma.c | 2 +- include/linux/dmaengine.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c index c964ebfcf3b68d86e4bbc9b62bad2212f0ce3ee9..8a2f235b669aaf084a6f7b3e6b2= 3d06b04768608 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -3408,7 +3408,7 @@ static int udma_set_metadata_len(struct dma_async_tx_= descriptor *desc, return 0; } =20 -static struct dma_descriptor_metadata_ops metadata_ops =3D { +static const struct dma_descriptor_metadata_ops metadata_ops =3D { .attach =3D udma_attach_metadata, .get_ptr =3D udma_get_metadata_ptr, .set_len =3D udma_set_metadata_len, diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dm= a.c index b53292e02448fe528f1ae9ba33b4bcf408f89fd6..97b934ca54101ea699e3ab28d41= 9bed1b45dee4a 100644 --- a/drivers/dma/xilinx/xilinx_dma.c +++ b/drivers/dma/xilinx/xilinx_dma.c @@ -653,7 +653,7 @@ static void *xilinx_dma_get_metadata_ptr(struct dma_asy= nc_tx_descriptor *tx, return seg->hw.app; } =20 -static struct dma_descriptor_metadata_ops xilinx_dma_metadata_ops =3D { +static const struct dma_descriptor_metadata_ops xilinx_dma_metadata_ops = =3D { .get_ptr =3D xilinx_dma_get_metadata_ptr, }; =20 diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 99efe2b9b4ea9844ca6161208362ef18ef111d96..92566c4c100e98f48750de21249= ae3b5de06c763 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -623,7 +623,7 @@ struct dma_async_tx_descriptor { void *callback_param; struct dmaengine_unmap_data *unmap; enum dma_desc_metadata_mode desc_metadata_mode; - struct dma_descriptor_metadata_ops *metadata_ops; + const struct dma_descriptor_metadata_ops *metadata_ops; #ifdef CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH struct dma_async_tx_descriptor *next; struct dma_async_tx_descriptor *parent; --=20 2.47.3