From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from CY7PR03CU001.outbound.protection.outlook.com (mail-westcentralusazon11010034.outbound.protection.outlook.com [40.93.198.34]) (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 5568C4A261D; Wed, 16 Sep 2026 11:55:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.93.198.34 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789559765; cv=fail; b=dsP8RFNc6THZasjlcdbhLVuQKnBMHANBeHQ9fkQfmw5nXDLrA8hF3E7HO3VRaR7sr22CjDfjMJ7woH961qSCUYPKKrh1QMlKfF/3W9Z3xEyRDW/bra2s1iWlry/d5FUHJfuPlrNtA4Fx1WfYIJUXwzWDRGFEo4k2/fIv2jcjpgU= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789559765; c=relaxed/simple; bh=Y8k2hD2CaFDMpfQp0ruLclQsVGwqKzI7Zg4fgriDaLQ=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=umkp8QbS/Gqzeoc6VsSB7au9HoA9HF9Gtl17fG0mvHMMyba2nQs1ka8oJ/8BKiZ9WMT/4AwpKDRN4LWbviTmSSjA00vId9y3CrfjAkFrys+7Wy4jMNxYhukola/0TlSKkp6DmdZZOhvSGsUi1U8loqVDgueYbKfc0Wb3vWYASXQ= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=msinSkf7; arc=fail smtp.client-ip=40.93.198.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="msinSkf7" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=LQfhMPYkhD6AnR3K8tdXf9QINnpy/KelrwnnDKg8EXRBdKD5of7YfSCTWdYSnWOsr0I1VYtFD35pu4D2udoh2lwT7n+aWyHtcfLM8eiK+6MMLJnbiGXsAZ7g7/b0RZhuEjRnuK9qZFWawxSaB5ABeeYkymtRbvub0kuSGYcZTZgc5f3w7ZudNJye3VGGqZA9mRWofXcfvs3d4xoGVYv2yTkAKTz1JQV9yJsp9oX3ehDxru2HNYJAxnvuUe0rYlpjD87snl2N5POoCnMxVWdVdvi7fUSG3k9jm9EzBv/bfLH2Ck+YIwo5A3A52Y2CtCPdKsvHIjB8rUBJ7Bw4x84O/g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=v0t8hG0A53D6hUuYqrsRHML1F/umVz5zdX/nWs1UwOo=; b=EzdtJjB28ig+7GsTxViWodfdnFK6WufDnsBFEiO1UwZIo17Tcz25r3ejAPYwQJydY57Nl1h9wYB4IiARz1qyJs6NuD1klpbFoeDR6qXIke2xYhkWTyHALBr9cRTlrCBYbsI2lHbqgWF4N1b3eJuz/4sPgOqFRtYUUoa/of0m3KFZOqnWcohj1slFfaYBXPk8vLMsuhaUmvIAEmUZ/q6QU8sMW7QOnJdvFbm/nywajodTdM7mTFc49uPK0VyZqNanscCphpSWAE9S7XW7dsVbq/w1PnSnOSNgjq4/1cTW9hh3tdO7CQepZlV1RLYebeXM44aOtDLRC09UVng/PrzDQQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=kernel.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=v0t8hG0A53D6hUuYqrsRHML1F/umVz5zdX/nWs1UwOo=; b=msinSkf7Cpw75oiMTS2aiOWLwlb2KTeD6N02xI3NUB3lkqrXiCYf5cqgrZhvjcor9u0jz7IU2WTVgRWhwjRHkYRzThUKIqa2E80Ewfzu+4aQDo+fC6yLyJjOVWT/8zBaB8ULBRJoVWrIKVs7xr2fHRlUDzE85kFEG7NdNyGUS7o= Received: from IA1P220CA0022.NAMP220.PROD.OUTLOOK.COM (2603:10b6:208:464::11) by PH8PR12MB7027.namprd12.prod.outlook.com (2603:10b6:510:1be::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.406.10; Wed, 16 Sep 2026 11:55:44 +0000 Received: from BN1PEPF0001854A.namprd05.prod.outlook.com (2603:10b6:208:464:cafe::29) by IA1P220CA0022.outlook.office365.com (2603:10b6:208:464::11) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.21.428.11 via Frontend Transport; Wed, 16 Sep 2026 11:55:44 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=satlexmb07.amd.com; pr=C Received: from satlexmb07.amd.com (165.204.84.17) by BN1PEPF0001854A.mail.protection.outlook.com (10.167.248.9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.428.7 via Frontend Transport; Wed, 16 Sep 2026 11:55:44 +0000 Received: from aiemdee.amd.com (10.180.168.240) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.49; Wed, 16 Sep 2026 06:55:20 -0500 From: Alexey Kardashevskiy To: CC: , , , , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Sean Christopherson , Paolo Bonzini , Andy Lutomirski , Peter Zijlstra , Ashish Kalra , Tom Lendacky , Herbert Xu , "David S. Miller" , Bjorn Helgaas , Juergen Gross , Stefano Stabellini , Oleksandr Tyshchenko , Marek Szyprowski , Robin Murphy , "Andrew Morton" , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , "Suren Baghdasaryan" , Michal Hocko , "Catalin Marinas" , Jini Susan George , Kees Cook , Michael Ellerman , Nikunj A Dadhania , Ard Biesheuvel , Eric Biggers , Kim Phillips , Joerg Roedel , Ethan Nelson-Moore , "Tycho Andersen (AMD)" , "Liam Merwick" , Michael Kerrisk , Suresh Siddha , Xiaotian Feng , Venkatesh Pallipadi , Andi Kleen , Kiryl Shutsemau , Tony Luck , Jason Gunthorpe , Lu Baolu , Xu Yilun , =?UTF-8?q?Carlos=20L=C3=B3pez?= , Jonathan Cameron , Jori Koolstra , =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= , "Aneesh Kumar K.V (Arm)" , Ian Campbell , Jeremy Fitzhardinge , Petr Tesarik , "David Howells" , Haavard Skinnemoen , Kenji Kaneshige , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , "Christian Marangi" , Dave Jiang , "Michael Kelley" , Ilias Stamatis , "Sumanth Korikkar" , Simona Vetter , Toshi Kani , Greg Kroah-Hartman , Vinod Koul , Jiang Liu , Arnd Bergmann , Anshuman Khandual , Kefeng Wang , "Palmer Dabbelt" , , , , , Alexey Kardashevskiy , , Santosh Shukla , "Pratik R . Sampat" , Scott Soule Cheloha , Ackerley Tng , Fuad Tabba Subject: [RFC PATCH kernel 05/17] tsm-core: Register nevertheless Date: Wed, 16 Sep 2026 21:51:45 +1000 Message-ID: <20260916115159.1938195-6-aik@amd.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260916115159.1938195-1-aik@amd.com> References: <20260916115159.1938195-1-aik@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: satlexmb08.amd.com (10.181.42.217) To satlexmb07.amd.com (10.181.42.216) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN1PEPF0001854A:EE_|PH8PR12MB7027:EE_ X-MS-Office365-Filtering-Correlation-Id: f0628022-b809-4ddf-e51b-08df13e9703a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|1800799024|36860700016|376014|32650700020|7416014|82310400026|10067099003|56012099006|11063799006|18002099003|22082099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(23010399003)(1800799024)(36860700016)(376014)(32650700020)(7416014)(82310400026)(10067099003)(56012099006)(11063799006)(18002099003)(22082099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 7gfBfw3cwrGt/CVo84j1pCRkyKykdOlikms4I9xrPxtU7a2fA0pHJxQRzxTWM+6b8a0csSjVoT8mKS6Fh5S4p3/YacTgzDsLs29wKHI/s+zpKWUZ9S53dJFYpvBTT8StmCj/fj7zbUsH6N3b3bTHkmBQGnkn/4VaLDkXK1yxeo1yCrpPf2lmJw5/PllWcJJ1K/31arILyJ5yLqnpqII+99EtP/UBjAfpsm3m91xjaz98+aj2kvIGKlc37TDCjygAK12BGRa0qB1t6adk5ILZ5QyUIz9UON+TI362rNKmbMy3uhfCJSbGQeiK/Z6JtG/alh0EOQsQ1KHtKtn0fEg+o8r4RyTZSwI8qaVd+PCCgOLfSASKmbQA3ZdpRcL0VYNSVfc+YyIvcuBrdeIIq8yhycKS3ykvz2dFWZDSJIsRnWvuMUrENy0ph0XkYNEq2Oau X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Sep 2026 11:55:44.0564 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f0628022-b809-4ddf-e51b-08df13e9703a X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN1PEPF0001854A.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR12MB7027 When this and platform TSM are built-in, there is no way to control the init order other than alphabetical. Force the class init when a TSM platform driver registers itself. Signed-off-by: Alexey Kardashevskiy --- The alternative is making it a subsys_init() and drop tsm_exit(). --- drivers/virt/coco/tsm-core.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/virt/coco/tsm-core.c b/drivers/virt/coco/tsm-core.c index 0843b77c6549..accee6a5cba8 100644 --- a/drivers/virt/coco/tsm-core.c +++ b/drivers/virt/coco/tsm-core.c @@ -51,6 +51,7 @@ static const struct attribute_group *tsm_pci_groups[] = { }; static void tsm_release(struct device *); +static bool tsm_class_registered; static const struct class tsm_class = { .name = "tsm", .dev_release = tsm_release, @@ -58,6 +59,14 @@ static const struct class tsm_class = { }; static DEFINE_IDA(tsm_ida); +static int tsm_class_init(void) +{ + int ret = class_register(&tsm_class); + + tsm_class_registered = ret == 0; + return ret; +} + static int match_id(struct device *dev, const void *data) { struct tsm_dev *tsm_dev = container_of(dev, struct tsm_dev, dev); @@ -82,6 +91,9 @@ static struct tsm_dev *alloc_tsm_dev(struct device *parent) struct tsm_dev *tsm_dev __free(kfree) = kzalloc_obj(*tsm_dev); + + tsm_class_init(); + if (!tsm_dev) return ERR_PTR(-ENOMEM); @@ -254,12 +266,14 @@ static void tsm_release(struct device *dev) static int __init tsm_init(void) { - return class_register(&tsm_class); + return tsm_class_init(); } module_init(tsm_init) static void __exit tsm_exit(void) { + if (!tsm_class_registered) + return; class_unregister(&tsm_class); xa_destroy(&tsm_ide_streams); } -- 2.55.0