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Smith" Subject: [PATCH v6 10/11] xen/dt: ifdef out DEV_DT-related bits from device_tree.{c,h} Date: Tue, 8 Jul 2025 20:07:19 +0200 Message-ID: <20250708180721.2338036-11-alejandro.garciavallejo@amd.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250708180721.2338036-1-alejandro.garciavallejo@amd.com> References: <20250708180721.2338036-1-alejandro.garciavallejo@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000FCBE:EE_|PH8PR12MB6867:EE_ X-MS-Office365-Filtering-Correlation-Id: e3deb64f-f6c8-4c28-9894-08ddbe4a6663 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|82310400026|1800799024|376014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?whSQ554B2rPxItYBYiU5g0DwO3AP8OhcdrZ3IPHVbrOkmG5Gq3NO8Nsgi9IY?= =?us-ascii?Q?EBUM0EmZ/d2eAugFj//ZzU2LmWuiQNi6Dt1riuisC3DcYB+3teNUDH89rg9U?= =?us-ascii?Q?ArBgiskatEL0XVdRqNJPdWdiuXLdIigBPxEnslZMovZEwCfZ4yWQF0DNIWur?= =?us-ascii?Q?Eus4HWiPxzeUuvWO+M6I7yK/iyDZFr0h6/8rKy9sgAjqdCuZVniRAxRWChtE?= =?us-ascii?Q?J/GG5JDwcsMfZMXVHoRN/3ie5ZFUUQKPiT6JYvbviqcrU0W5mIXcwrbsRGaD?= =?us-ascii?Q?b6Y0JtcQ51vugHJMspMvn2mlRQKLzWYBgfeETwjOE7evlnsuqk53YL+T0CJF?= =?us-ascii?Q?fK3unvCjL1AYKcgv2403PQOLviYzLwlH15nS4UGY3/MPjvXzL0EVtmI/rQmY?= =?us-ascii?Q?zUwi8steRfNl9jbQwlnjOyTcZeZozl6yd1Jt3qDCxPfQuX1L3GN9k8XbwGcK?= =?us-ascii?Q?6yJYz+pMi6knLwTU0OhnyL0DNZHGpWAlAjeQ04Af/j6Z2spucdco8ljIRCXr?= =?us-ascii?Q?hNU6NkHdhRRxtTNQPmucN1vhMrBgPC3fUSxmYjAJudn4aCCjgsPdBrmwFVmM?= =?us-ascii?Q?JIMDwtCnBsgDvKplicDWs6h28hWutSpW2F/DfYajNfL8bwBoy7X2nz2wMDvW?= =?us-ascii?Q?4p4HRE9J9TT9t+d4ftjrdaClaxDYKgf2Kdk7HZZ77Bf45wNsXk+48D/uqYRr?= =?us-ascii?Q?RkgZ+1t/nu9QMMwkIVHd2DxsUd5r+Io2UnfZp270UQcyupxXVrXCO+/2HY8E?= =?us-ascii?Q?tddPMBSSxaboqBIbWjvmXaPHpbS0s4pPzcB3pF/ePG58yMVic2tDQRn4BkQU?= =?us-ascii?Q?zxBB1VZxi0DFHd4mCWdpT0qZUzQRi12EqVb/9RhowkEXuPkUFL4HZqnBEeO3?= =?us-ascii?Q?G7KaFBY0dd8HxK+ngpaqPkeQQ25GP6tmFh2gCZOwT4LYbMRnSGjCOzBGW2rM?= =?us-ascii?Q?VAYXuFNaOd/CmmR8ZGP+EXRqDN1ScIKx17PpK+Oc6rICTZoFvfpfyvvz0yfv?= =?us-ascii?Q?TtuzS77LNvWVNNxT0swEujTbohZUXnMM38PWYi6PR3AT2eZvV2RTQCjet6uL?= =?us-ascii?Q?Y0F/pCk91xzzJWKbx1vWfDWZo0FVM3VYMWfO4ktchza/5k9QbkufmRjSPC1g?= =?us-ascii?Q?p/2L7qzX/Q85H1UU/T8ndLA3xo/t5EDciqHpKiXBBh8n1PWvgUbDGB+OUiWf?= =?us-ascii?Q?CK8typs6x3Yqpz0LViB3YdAUt+CPr8PZIZ2jPOL88PIr6bnqtHuXaf28Kgtf?= =?us-ascii?Q?dVMy8NYQ7DB4wcN+muNUQMq8d+t+CceCPbm979GNnguAMrBH0bXpZ2ojCy5j?= =?us-ascii?Q?90/Y1V35lnPWlCgxJz6jSEck6hbp3p2e83qnrBqBB6QjkBKhBtWjZIc3hmUA?= =?us-ascii?Q?D3WaaQ85spggVzKd9uZ6ZVmY6E2i9dejQ2cPH+GeJV2zAeSsQj4liRaIDxXf?= =?us-ascii?Q?U+eqDy9alQ4qi1Pq+DXmuEjFK7I2MIKojp7vVkC+lTfbA4dTtMH0qpVnJGwF?= =?us-ascii?Q?gV1thwcCSCXpBWYdUN2+fC9nKWNsa8EKH5ml?= X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(36860700013)(82310400026)(1800799024)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Jul 2025 18:08:11.0262 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e3deb64f-f6c8-4c28-9894-08ddbe4a6663 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=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000FCBE.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR12MB6867 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1751998113182116600 Content-Type: text/plain; charset="utf-8" From: Alejandro Vallejo Architectures that don't discover devices via DT may skip anything to do with device_t during the DT unflattening phase. Make device-tree.c stop requiring CONFIG_HAS_DEVICE_TREE_DISCOVERY so it may function with CONFIG_DEVICE_TREE_PARSE alone. This allows CONFIG_DEVICE_TREE_PARSE to unflatten a DT ignoring its devices if CONFIG_HAS_DEVICE_TREE_DISCOVERY is not selected. Signed-off-by: Alejandro Vallejo Reviewed-by: Stefano Stabellini --- xen/common/device-tree/device-tree.c | 2 ++ xen/include/xen/device_tree.h | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/xen/common/device-tree/device-tree.c b/xen/common/device-tree/= device-tree.c index 4ebdb2e52e..84daa3f0ed 100644 --- a/xen/common/device-tree/device-tree.c +++ b/xen/common/device-tree/device-tree.c @@ -2030,9 +2030,11 @@ static unsigned long unflatten_dt_node(const void *f= dt, ((char *)pp->value)[sz - 1] =3D 0; dt_dprintk("fixed up name for %s -> %s\n", pathp, (char *)pp->value); +#ifdef CONFIG_HAS_DEVICE_TREE_DISCOVERY /* Generic device initialization */ np->dev.type =3D DEV_DT; np->dev.of_node =3D np; +#endif /* CONFIG_HAS_DEVICE_TREE_DISCOVERY */ } } if ( allnextpp ) diff --git a/xen/include/xen/device_tree.h b/xen/include/xen/device_tree.h index 8a39a60c54..06d7643622 100644 --- a/xen/include/xen/device_tree.h +++ b/xen/include/xen/device_tree.h @@ -108,9 +108,12 @@ struct dt_device_node { */ struct list_head domain_list; =20 +#ifdef CONFIG_HAS_DEVICE_TREE_DISCOVERY struct device dev; +#endif /* CONFIG_HAS_DEVICE_TREE_DISCOVERY */ }; =20 +#ifdef CONFIG_HAS_DEVICE_TREE_DISCOVERY #define dt_to_dev(dt_node) (&(dt_node)->dev) =20 static inline struct dt_device_node *dev_to_dt(struct device *dev) @@ -119,6 +122,7 @@ static inline struct dt_device_node *dev_to_dt(struct d= evice *dev) =20 return container_of(dev, struct dt_device_node, dev); } +#endif /* CONFIG_HAS_DEVICE_TREE_DISCOVERY */ =20 #define MAX_PHANDLE_ARGS 16 struct dt_phandle_args { --=20 2.43.0