From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2ABA0F55438 for ; Wed, 25 Feb 2026 01:50:23 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5788A10E66B; Wed, 25 Feb 2026 01:50:22 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="XshJtRTO"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9B42410E347; Wed, 25 Feb 2026 01:50:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1771984222; x=1803520222; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=pANdu0NlQiZhwts517AU3eZS3oAIRK6beNsIuXvZ59k=; b=XshJtRTO8yXL+B6d763QcRTsIDPIoDriWNocq0X/6Sn0ZXNUCqiY/yLb m5kLKl7pcUt2g0FwXYDQixV9D+YE/U9IcarrCTAvRYrSmJwDWRgYvRnGG MGgkExnVOb8RAD6u98IuWAq+Fp+h1cqnzT5XYPmxEKPbGnm2kEH1eXsf0 JurbXwsR9j8L2Cs1YeYaEIVX0tvr4tCh10eWN2wfN3lpLDN2AoTmdVtnh y4f3fYvdvMrdy/YEJhppUOivkZhJpDwDTZx1tvEqSDjcRMkE2EhMkY0eS R6AeqEK8KFdhbVQKoXmUSHQi+76wopBoVK+sqsW/0upo1C1eGOO6I/wLc A==; X-CSE-ConnectionGUID: CmPIDAScRlueoqUP4F9ejw== X-CSE-MsgGUID: EoS0EtTwSumJzeVfmmXOVQ== X-IronPort-AV: E=McAfee;i="6800,10657,11711"; a="76622904" X-IronPort-AV: E=Sophos;i="6.21,309,1763452800"; d="scan'208";a="76622904" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Feb 2026 17:50:21 -0800 X-CSE-ConnectionGUID: winYIGodQlOE93A2ZtaohA== X-CSE-MsgGUID: wuye8T+eQ8S7HoaGYvXEkw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,309,1763452800"; d="scan'208";a="216096177" Received: from debox1-desk4.jf.intel.com ([10.88.27.138]) by orviesa008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Feb 2026 17:50:20 -0800 From: "David E. Box" To: thomas.hellstrom@linux.intel.com, rodrigo.vivi@intel.com, irenic.rajneesh@gmail.com, ilpo.jarvinen@linux.intel.com, srinivas.pandruvada@linux.intel.com, intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org, xi.pardee@linux.intel.com Cc: david.e.box@linux.intel.com, hansg@kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH v5 2/6] platform/x86/intel/vsec: Make driver_data info const Date: Tue, 24 Feb 2026 17:50:08 -0800 Message-ID: <20260224-upstream-pmt-acpi-v5-v5-2-8dd73bcf049c@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260224-upstream-pmt-acpi-v5-v5-0-8dd73bcf049c@linux.intel.com> References: <20260224-upstream-pmt-acpi-v5-v5-0-8dd73bcf049c@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Treat PCI id->driver_data (intel_vsec_platform_info) as read-only by making vsec_priv->info a const pointer and updating all function signatures to accept const intel_vsec_platform_info *. This improves const-correctness and clarifies that the platform info data from the driver_data table is not meant to be modified at runtime. No functional changes intended. Signed-off-by: David E. Box --- Changes in v5: - No change Changes in v4: - No change Changes in v3: - No change Changes in v2: - New patch drivers/platform/x86/intel/vsec.c | 20 ++++++++++---------- include/linux/intel_vsec.h | 4 ++-- 2 files changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/platform/x86/intel/vsec.c b/drivers/platform/x86/intel= /vsec.c index 46966edca03b..e0096be605d9 100644 --- a/drivers/platform/x86/intel/vsec.c +++ b/drivers/platform/x86/intel/vsec.c @@ -42,7 +42,7 @@ enum vsec_device_state { }; =20 struct vsec_priv { - struct intel_vsec_platform_info *info; + const struct intel_vsec_platform_info *info; struct device *suppliers[VSEC_FEATURE_COUNT]; struct oobmsm_plat_info plat_info; enum vsec_device_state state[VSEC_FEATURE_COUNT]; @@ -270,7 +270,7 @@ int intel_vsec_add_aux(struct pci_dev *pdev, struct dev= ice *parent, EXPORT_SYMBOL_NS_GPL(intel_vsec_add_aux, "INTEL_VSEC"); =20 static int intel_vsec_add_dev(struct pci_dev *pdev, struct intel_vsec_head= er *header, - struct intel_vsec_platform_info *info, + const struct intel_vsec_platform_info *info, unsigned long cap_id, u64 base_addr) { struct intel_vsec_device __free(kfree) *intel_vsec_dev =3D NULL; @@ -406,7 +406,7 @@ static int get_cap_id(u32 header_id, unsigned long *cap= _id) =20 static int intel_vsec_register_device(struct pci_dev *pdev, struct intel_vsec_header *header, - struct intel_vsec_platform_info *info, + const struct intel_vsec_platform_info *info, u64 base_addr) { const struct vsec_feature_dependency *consumer_deps; @@ -452,7 +452,7 @@ static int intel_vsec_register_device(struct pci_dev *p= dev, } =20 static bool intel_vsec_walk_header(struct pci_dev *pdev, - struct intel_vsec_platform_info *info) + const struct intel_vsec_platform_info *info) { struct intel_vsec_header **header =3D info->headers; bool have_devices =3D false; @@ -468,7 +468,7 @@ static bool intel_vsec_walk_header(struct pci_dev *pdev, } =20 static bool intel_vsec_walk_dvsec(struct pci_dev *pdev, - struct intel_vsec_platform_info *info) + const struct intel_vsec_platform_info *info) { bool have_devices =3D false; int pos =3D 0; @@ -519,7 +519,7 @@ static bool intel_vsec_walk_dvsec(struct pci_dev *pdev, } =20 static bool intel_vsec_walk_vsec(struct pci_dev *pdev, - struct intel_vsec_platform_info *info) + const struct intel_vsec_platform_info *info) { bool have_devices =3D false; int pos =3D 0; @@ -565,7 +565,7 @@ static bool intel_vsec_walk_vsec(struct pci_dev *pdev, } =20 int intel_vsec_register(struct pci_dev *pdev, - struct intel_vsec_platform_info *info) + const struct intel_vsec_platform_info *info) { if (!pdev || !info || !info->headers) return -EINVAL; @@ -578,7 +578,7 @@ int intel_vsec_register(struct pci_dev *pdev, EXPORT_SYMBOL_NS_GPL(intel_vsec_register, "INTEL_VSEC"); =20 static bool intel_vsec_get_features(struct pci_dev *pdev, - struct intel_vsec_platform_info *info) + const struct intel_vsec_platform_info *info) { bool found =3D false; =20 @@ -622,7 +622,7 @@ static void intel_vsec_skip_missing_dependencies(struct= pci_dev *pdev) =20 static int intel_vsec_pci_probe(struct pci_dev *pdev, const struct pci_dev= ice_id *id) { - struct intel_vsec_platform_info *info; + const struct intel_vsec_platform_info *info; struct vsec_priv *priv; int num_caps, ret; int run_once =3D 0; @@ -633,7 +633,7 @@ static int intel_vsec_pci_probe(struct pci_dev *pdev, c= onst struct pci_device_id return ret; =20 pci_save_state(pdev); - info =3D (struct intel_vsec_platform_info *)id->driver_data; + info =3D (const struct intel_vsec_platform_info *)id->driver_data; if (!info) return -EINVAL; =20 diff --git a/include/linux/intel_vsec.h b/include/linux/intel_vsec.h index 1a0f357c2427..d551174b0049 100644 --- a/include/linux/intel_vsec.h +++ b/include/linux/intel_vsec.h @@ -200,13 +200,13 @@ static inline struct intel_vsec_device *auxdev_to_ivd= ev(struct auxiliary_device =20 #if IS_ENABLED(CONFIG_INTEL_VSEC) int intel_vsec_register(struct pci_dev *pdev, - struct intel_vsec_platform_info *info); + const struct intel_vsec_platform_info *info); int intel_vsec_set_mapping(struct oobmsm_plat_info *plat_info, struct intel_vsec_device *vsec_dev); struct oobmsm_plat_info *intel_vsec_get_mapping(struct pci_dev *pdev); #else static inline int intel_vsec_register(struct pci_dev *pdev, - struct intel_vsec_platform_info *info) + const struct intel_vsec_platform_info *info) { return -ENODEV; } --=20 2.43.0