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McKenney" , Boqun Feng , Jonathan Corbet , Prakash Sangappa , Madadi Vineeth Reddy , Steven Rostedt , Sebastian Andrzej Siewior , Arnd Bergmann , References: <20250908225709.144709889@linutronix.de> <20250908225752.744169647@linutronix.de> Content-Language: en-US From: K Prateek Nayak In-Reply-To: <20250908225752.744169647@linutronix.de> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Received-SPF: None (SATLEXMB05.amd.com: kprateek.nayak@amd.com does not designate permitted sender hosts) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000EE34:EE_|BY5PR12MB4226:EE_ X-MS-Office365-Filtering-Correlation-Id: 9657b137-2796-4855-dc71-08ddef4e740c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|1800799024|82310400026|7416014|376014; X-Microsoft-Antispam-Message-Info: =?utf-8?B?YVZoUnFkdFhOL2tJdDdBd2pISmtmeFJ4NGxKd2YxK0xoa2Y5V3BsalFFVkF6?= =?utf-8?B?ajdNRWdFdjF1dVh3WVNGQVhVZllkakx1cFBRT0xJTGdlVEo1bXFnbkJJY3Vu?= =?utf-8?B?RnZzWE4zekpad1ZxcmlxYVRJS3V5U1lQNVRqOC9zWERnMytFZURJTTNsS3Rr?= =?utf-8?B?T3JMRnpKZXQwRHJQZzZRTHFRSWIzeFYyMk5ic0hSSVA4RlFXZmpGZzIwRk1G?= =?utf-8?B?cEdORWZjMGNRRExQaW1DMEJqaU1xaGNnTS9rRit3cmRVc2w5MkRMb3pqZzNi?= =?utf-8?B?MkRYbmhMdkIrU0MrQlJWSXlOdGVoUDB1RGdlVWlqSk5STzRJV3VHR2w0d0w4?= =?utf-8?B?UWU0cFZmMGpOS2NLaTdTSjUrMWJCNVRxT2paaDZUMWVBNTVWZFFibVNQNEFZ?= =?utf-8?B?U3RuMTNLRmZwT2h6MlZMd2RUaW9HZWUreFhoQWkyeWQ2c1JMWVhzZ3JzNi9r?= =?utf-8?B?cVJwSVhiRTRsSklnL2dQdS8yNnJCcnQ3WHEvOWRyaHA4RmUzTmxzNkZZWTZB?= =?utf-8?B?dUNEb2wzY1l5OVRYR2VlcVRRaFNaYkNjNzkvbFJhRVloM0N5ZUwrVVdsUlZO?= =?utf-8?B?dkhabHFnNitrVnEzYzF6dllONGMvTGNqMTlLaDYwVG94bXE2NHk1UkxHSFV5?= =?utf-8?B?bklwSmlwS01naUxvNlM5bklrN3FzSGRVaHUrSGFMc0xGanRTbUFTc0lwZ1N6?= =?utf-8?B?SWxLcUFXaDA4Y3Yyc2xQZldhb2luVklpNnNIZndoWTNkbm9iV2FFM3pJaTEr?= =?utf-8?B?ektCWU8ySVRPV0VJZ0gwT2JrUm4zRHBDTWMrQ05IM3ZmRjNwamY4TzZwQS9r?= =?utf-8?B?bWFrVU5reGozdVI1U0VvVUNVbGRUWFlyTGZtTEM2eGhYTjVjWCsrVWgvc09R?= =?utf-8?B?NWdXcTYvZUViVDJCYWN1NFpEQ1Z0c3RIYWlkVFg0WWtHeWh6aHRzT3FUL2Ru?= =?utf-8?B?L09CTUZOa1R4bXZFaGxrVlJxOTM2YUg2SGlDUVhXVm0rZ3VjenVtbUU5UTgr?= =?utf-8?B?OEJaL2Q2M0JmbDhNTmxGYnBvN1R3YTl2THRFQUtDY3M2bU1nZDFLR2g5YmxI?= =?utf-8?B?Q1JjSFloZjMxSVRpOElYeGZvVDVManUzaFlmS0FqS0x1cUpFZ2ZYSzBRdmNi?= =?utf-8?B?aFlzTVhsOHUwOXg5RXU1K1FidDVSTGtEc3pTZ2cybFFJSmtWU0pmUDBDanJt?= =?utf-8?B?dnFEeCtaRHhpWE9IWmV2bjk5MVhvSnoxWjFMaklXT25Da3JBakRzd21DZk1p?= =?utf-8?B?Yk5TMDhRZUc0YkIxVndWeFV2dC9MalZ2cWVBTDhRWU9vU3VrMW1wSm00dnRl?= =?utf-8?B?R1VTSVZibXVCZXRCZXRyck5vSjhHZWs3NzI2UzN1MHcvZjA0N1lzdHRiZlky?= =?utf-8?B?L0pxbWhvMkVBb2JXQWxMZUR1S2FFTDFWRmdrczNNbWhNN3JIUFIzNEljZmxQ?= =?utf-8?B?VVhEZW5IVUIyempjUXY1dE02QlY5M3pDNUZ3dXVucUE5Zytyd1Q4cGd4YzJN?= =?utf-8?B?ZVVyc2dIWHQ4aEx0eHp6S3paa1lQaTFVRkYzNDY5K016OGd2RzlxWTd3UktV?= =?utf-8?B?djR2bkVDbStXMDBoNUJrWlU3WHlWN3hEMVZsZkRQSHUrNDdHWnk3NlRYQkJK?= =?utf-8?B?ZUl5eDM2b0lzL1hmTHdkRDhicTRFNkNlOVRqZXAyMTB1WlQxNElpOUwxV2JF?= =?utf-8?B?dTd6bTlvOUk2dGRHL21ESTlCZU1SSmFtMlhpQk9Ualh6dVlRZUNqZHZnK3Ix?= =?utf-8?B?eGtSVi8vbjFhVDJycDlDaWpTVGkxU0ZaTFZiK3M5R0NYK0VtQXBaT2ZVMFlF?= =?utf-8?B?ZHRLdWpUUlNIQnQ4MTU3N3kxTDMreHVHa05qMFVhUUlhaWIyM2FWNUxaSndm?= =?utf-8?B?NnNkbkZObjM5aDZRVW1CU2NkblUrL2JjV1lrOEZvNTZJVnVMVHhHeXA0RndY?= =?utf-8?B?NEJZWGxSS3V3VFR0K1NJcXRQaW9nelhVL2N3d0hNU1ErQlVSM2xaaTNYKzhk?= =?utf-8?B?V0hyMlpWK2Vwa0JpbUh2TDhyUGJkTE1vVHJZTjZrUG1nZTVndkxGQXZNSlFI?= =?utf-8?Q?a60nHG?= X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:satlexmb08.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(36860700013)(1800799024)(82310400026)(7416014)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Sep 2025 03:10:38.9097 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 9657b137-2796-4855-dc71-08ddef4e740c 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=[satlexmb08.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000EE34.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR12MB4226 Hello Thomas, On 9/9/2025 4:29 AM, Thomas Gleixner wrote: > +#ifdef CONFIG_RSEQ_SLICE_EXTENSION > +DEFINE_STATIC_KEY_TRUE(rseq_slice_extension_key); > + > +static int __init rseq_slice_cmdline(char *str) > +{ > + bool on; > + > + if (kstrtobool(str, &on)) > + return -EINVAL; > + > + if (!on) > + static_branch_disable(&rseq_slice_extension_key); > + return 0; I believe this should return "1" signalling that the cmdline was handled correctly to avoid an "Unknown kernel command line parameters" message. > +} > +__setup("rseq_slice_ext=", rseq_slice_cmdline); > +#endif /* CONFIG_RSEQ_SLICE_EXTENSION */ > -- Thanks and Regards, Prateek