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pr=C From: Michal Orzel To: CC: Michal Orzel , Stefano Stabellini , Julien Grall , Bertrand Marquis Subject: [PATCH 3/4] dt-overlay: Remove ASSERT_UNREACHABLE from add_nodes() Date: Thu, 19 Sep 2024 12:42:37 +0200 Message-ID: <20240919104238.232704-4-michal.orzel@amd.com> X-Mailer: git-send-email 2.37.6 In-Reply-To: <20240919104238.232704-1-michal.orzel@amd.com> References: <20240919104238.232704-1-michal.orzel@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF0000150B:EE_|LV2PR12MB5871:EE_ X-MS-Office365-Filtering-Correlation-Id: 2e76b153-6704-40b0-9347-08dcd8982b2c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|36860700013|82310400026|1800799024; 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:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(376014)(36860700013)(82310400026)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Sep 2024 10:45:24.9956 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2e76b153-6704-40b0-9347-08dcd8982b2c 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: SA2PEPF0000150B.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV2PR12MB5871 The assumption stated in the comment that the code will never get there is incorrect. It's enough for the target-path to be incorrect (i.e. user error), which will lead to an incorrect overall node path and we will end up in this "unreachable" place causing a failure in debug builds. Fixes: 0c0facdab6f5 ("xen/arm: Implement device tree node addition functionalities") Signed-off-by: Michal Orzel --- xen/common/dt-overlay.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/xen/common/dt-overlay.c b/xen/common/dt-overlay.c index 8606b14d1e8e..d18bd12bd38d 100644 --- a/xen/common/dt-overlay.c +++ b/xen/common/dt-overlay.c @@ -596,11 +596,7 @@ static long add_nodes(struct overlay_track *tr, char **nodes_full_path) overlay_node = dt_find_node_by_path_from(tr->dt_host_new, nodes_full_path[j]); if ( overlay_node == NULL ) - { - /* Sanity check. But code will never come here. */ - ASSERT_UNREACHABLE(); return -EFAULT; - } /* * Find previous and next node to overlay_node in dt_host_new. We will