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{ "id": 2194885, "url": "http://patchwork.ozlabs.org/api/covers/2194885/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/cover/20260210-scmi-fix-v1-0-0d75f57944de@nxp.com/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260210-scmi-fix-v1-0-0d75f57944de@nxp.com>", "list_archive_url": null, "date": "2026-02-10T08:12:13", "name": "[0/3] Validate device tree node in SCMI/Power/IOMMU", "submitter": { "id": 80723, "url": "http://patchwork.ozlabs.org/api/people/80723/?format=api", "name": "Peng Fan", "email": "peng.fan@oss.nxp.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/cover/20260210-scmi-fix-v1-0-0d75f57944de@nxp.com/mbox/", "series": [ { "id": 491612, "url": "http://patchwork.ozlabs.org/api/series/491612/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=491612", "date": "2026-02-10T08:12:13", "name": "Validate device tree node in SCMI/Power/IOMMU", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/491612/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2194885/comments/", "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com\n header.a=rsa-sha256 header.s=selector1-NXP1-onmicrosoft-com\n header.b=r2jdODcR;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; 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mx.microsoft.com 1; spf=pass\n smtp.mailfrom=oss.nxp.com; dmarc=pass action=none header.from=oss.nxp.com;\n dkim=pass header.d=oss.nxp.com; arc=none", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=NXP1.onmicrosoft.com;\n s=selector1-NXP1-onmicrosoft-com;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=hzX+hZMcO22BD2Nv0pHag3I9JhkgQuPrXD4qCuTpp/Y=;\n b=r2jdODcRv1r+L7U113MwwHrZ5RnwjZkf9xS3vgZrEnfZxYTsDyfGPLlumzL3IttglSOUFW7WdJXeGtZBiJsGt1vvXXXvS+uG/HeFQm6c/RRcRgK2n47RQiYRv6y9do/G6tiRkNh0qrA0AdbQTIfaWROFfgzxjy4TL2CLje7q/3S6ejklcJNAdHpM86UU1VPNOt5WYzScrXh8vm6GXCJHGdOALROX3KhjfPHB+fJhC5lrVCURHBw5/UVK6vR/AuSnHwIsi4+UuD4EWFmh8DDnflMWUzzL2khxzBcmRGKj+RTnFe8sNaTpWU8K5aaLRErN6qOcTPMQBjKycr0hH+iSnA==", "From": "\"Peng Fan (OSS)\" <peng.fan@oss.nxp.com>", "Subject": "[PATCH 0/3] Validate device tree node in SCMI/Power/IOMMU", "Date": "Tue, 10 Feb 2026 16:12:13 +0800", "Message-Id": "<20260210-scmi-fix-v1-0-0d75f57944de@nxp.com>", "Content-Type": "text/plain; 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#tagp is NULL\n\t |->tag = fdt32_to_cpu(*tagp); #panic here\n\nIn [1], Ye report the issue, but per Tom:\n\"In SPL we must assume a perfect device tree has been passed to us, both\nfor design reasons (it's not a user interactively, we built it, or it\ncame from some other firmware stack) as well as practical (performing\nthe sanity tests would grow all platforms by several kilobytes and\noverflow size constraints). I think the SCMI code needs to be reworked,\nin short\"\n\nSo we need to add a check in scmi transport driver, also need to \nadd a check in dev_power_domain_ctrl and iommu. Similar to the check in\npinctrl_select_state and the check before call into clk_set_defaults,\nif ofnode is not valid, directly bypass. With this change, we could\nstill keep SPL_OF_LIBFDT_ASSUME_MASK as 0xFF.\n\nhttps://lore.kernel.org/u-boot/20260207141750.GB2603314@bill-the-cat/\n\nSigned-off-by: Peng Fan <peng.fan@nxp.com>\n---\nPeng Fan (3):\n firmware: scmi: Validate device tree node before setup channel\n power: domain: Validate device tree node in dev_power_domain_ctrl\n iommu: Validate device tree node in dev_iommu_enable\n\n drivers/firmware/scmi/mailbox_agent.c | 2 +-\n drivers/firmware/scmi/optee_agent.c | 3 ++-\n drivers/iommu/iommu-uclass.c | 3 +++\n drivers/power/domain/power-domain-uclass.c | 3 +++\n 4 files changed, 9 insertions(+), 2 deletions(-)\n---\nbase-commit: b99da05e1538b8fa153322da82917af2aa27e1d6\nchange-id: 20260210-scmi-fix-8f8ae5f6abce\n\nBest regards," }