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Smith" , Stefano Stabellini , Julien Grall , Bertrand Marquis , Michal Orzel Subject: [PATCH v8 10/11] xen/dt: ifdef out DEV_DT-related bits from device_tree.{c,h} Date: Tue, 22 Jul 2025 02:05:22 +0200 Message-ID: <20250722000525.7247-11-alejandro.garciavallejo@amd.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250722000525.7247-1-alejandro.garciavallejo@amd.com> References: <20250722000525.7247-1-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: SA2PEPF00003AE8:EE_|CY5PR12MB6273:EE_ X-MS-Office365-Filtering-Correlation-Id: 2ae5cd52-830d-435d-8a1b-08ddc8b38ed5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|376014|1800799024|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?UqJWbycPSdNdoI5nSfrCTYOO0J6GHYU1J2xK/GX6Yj8N/g+5o5hCMm0GOJyX?= =?us-ascii?Q?neVTmWp3mIc7vfk3Kv2l47o8oN6OFYoidAIM6GXHaZWVYZMBjBQeRozSgBjB?= =?us-ascii?Q?JP4a4+6g+1uxCMA/+1fByK2LNlN7HCMNvuAZnY9LOWFOBgP5qPKmWgGDLZyr?= =?us-ascii?Q?k8aD2V9yyzSgHaDF9WXtw0q0DhtHUkXFdWjdi8cgrJ4VcoD333D5feHeBFVq?= =?us-ascii?Q?T5zPGXmQ7WcCExXJ+lWgS2KfNJdkXPBE0YhQY+AOI/NHdZ2Hgq83FqQq/IJ0?= =?us-ascii?Q?dai4meSEP08gIzbbB8vD9gzgrS8FA8/bpUpIP9w+ECUwPSa5fJ4XMp6Ctj5/?= =?us-ascii?Q?/fx6Hu9qUwasj5Gj5LNd6uHm7hWxQZx95yTDSlnSsZTGgLA+wM6qT2XqhkTn?= =?us-ascii?Q?dJmfnP0/u+mVOQsL1iHG2g5SgSJjkluyIM5IXIzlxQb/Yl+jvoAn2W4sa2nt?= =?us-ascii?Q?jLALiK2EPe32MoVDl9yGUKZ3TF6LVT32kGjWA+T1iwvibC06J/uBaKDichyW?= =?us-ascii?Q?BjTGebva+DCk3a/RVP9JJOrk17QS1FRTmc9da0fVGZLoMxx6Q3fNxFJqOMni?= =?us-ascii?Q?gU7t5BBIR3O5XWEMtqB0EtO9HUUy3AtTuNdj7bQRMBX9DV9w+gUIQlDCJ0F8?= =?us-ascii?Q?pu9FpEd1IHchvbPYb4mT9LPLomX+1ZUl4CHKy0YhX+XVTbkbx8Z094y6opoa?= =?us-ascii?Q?0TwSN/5KKOlAPydKOQtn+nDWwKYxDeXCCX0VWVHB81yCUNFPe0MipRlW1ibs?= =?us-ascii?Q?JktXnYqXrRUQYz3bL8Ly+wHXV8gF7WzliK+yMFrcYTc1mbYuww0kM7ao9It2?= =?us-ascii?Q?6AepEtIzkYNdUcVV01uw6WoH9DUXs6pb7pbptl/ot8sXukautjNz1H4Qbi5u?= =?us-ascii?Q?cI2WxVfhsuIFuZ2pcAD34fNX0gX+DLaPkUgo/cgwltjGY7uebwo4Cor+LKdY?= =?us-ascii?Q?HCfiFYRGYQncKmmf55XSTRAbrWVZL7oRvcHCtmg4VRbDdyU65QP4/yjcpESu?= =?us-ascii?Q?XaZAIhX/JCX52TdT2yXEceHkKnU8jvvgc3VlmhSKJWI1+zXNuB6MtDoZFwPZ?= =?us-ascii?Q?KL0LhKHfW2oGZ/I9cKoeaNwb1KbYQXAGGOmt2DMgvV/Y0ZYoGK32wkV/412D?= =?us-ascii?Q?hXTYYOiijWPiBlZyRlajPAsWnwiPdH9fA+v4gKqL490xVPTHg5FtYzzwd4mp?= =?us-ascii?Q?loZmGafZ6rPwQdQLdZg0fyd4n0FCY3TYLX0zKS37eE126Eu9jioXvpGLHPBx?= =?us-ascii?Q?1ahPSObciMtnGwHOkqxNCYgRSupOWkfxrYtHU0DsiISOI8AfTg3tAZoZ0JU6?= =?us-ascii?Q?38CmnGg0pwzk5YSUJcaw1jb+m0ug1+fUZmAdBJoPsdoKlSw9HO990bRsxocm?= =?us-ascii?Q?s4LlDJapUnWSqpvewe/LZ7BRbvhVEt2HlVcTyEuuXfmZN0+Uecdq67Gq3eIg?= =?us-ascii?Q?e7tMZP9DSQh1cCNK72LpU7XHSfdIIS2sPB4jweDQ8yfu94Y1xwY9zof1jO67?= =?us-ascii?Q?lZ2+3fKGCYd9iEBRAQkQPvmkeD3Rng4lO8D0?= 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)(376014)(1800799024)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Jul 2025 00:06:07.6887 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2ae5cd52-830d-435d-8a1b-08ddc8b38ed5 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: SA2PEPF00003AE8.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY5PR12MB6273 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1753142807548116600 Content-Type: text/plain; charset="utf-8" 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