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Fri, 23 Jan 2026 22:48:40 +0000 From: Date: Fri, 23 Jan 2026 14:48:38 -0800 To: Alexey Kardashevskiy , CC: , Ashish Kalra , "Tom Lendacky" , John Allen , "Herbert Xu" , "David S. 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Sampat" Message-ID: <6973fac6a8fea_309510044@dwillia2-mobl4.notmuch> In-Reply-To: <20260123053057.1350569-2-aik@amd.com> References: <20260123053057.1350569-1-aik@amd.com> <20260123053057.1350569-2-aik@amd.com> Subject: Re: [PATCH kernel 1/2] crypto/ccp: Use PCI bridge defaults for IDE Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SJ0PR05CA0167.namprd05.prod.outlook.com (2603:10b6:a03:339::22) To PH8PR11MB8107.namprd11.prod.outlook.com (2603:10b6:510:256::6) Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH8PR11MB8107:EE_|DM4PR11MB6166:EE_ X-MS-Office365-Filtering-Correlation-Id: 225e7705-535e-4c6b-ba2a-08de5ad18d6d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|376014|7416014|1800799024|7053199007; X-Microsoft-Antispam-Message-Info: =?utf-8?B?RE9VeTU1M0lHbXprTGZEcysyc0RONDFZbWt3eG92djZQZjhBNXRBdUlSTkFk?= =?utf-8?B?cUVYVEFFZGdOcHl4NlphdVZkTEhtVnpGYTdjcnA5dzRkUGRXREs1dUcvbnBj?= =?utf-8?B?akFXWjRFUDkwbW1BZmF0VmFqUXdoemNLNXM4QXhJdlBUUllDZW9FNWovWGNL?= =?utf-8?B?VHZCandzS3VrMmlseXA5ME5oUjJGTy9GNVZ3enNMN2RieHg3czhrU1JJM0N1?= =?utf-8?B?NGRuUk5VcEE1ZzRYU0tJSW0vdHk5Z09meDdRMDVHMFVDMVh2TEhGQytwcUZu?= =?utf-8?B?cXdlZHBnMDN4enNtemF3U3VXcDdwOU5MUWlhNnFhdXljdjMwckUraWNNRWU3?= =?utf-8?B?ZlVxSGFFdnc5RkV3NVl5NjBacG9iMGk5R1VyTEI3K1ZwMmtsSWdIT21weTA5?= =?utf-8?B?cUFNUE9ubEpRRE9rUTcwMXdIdVZOK1M2NFhVZEdyZDJkV01hdlBXeWRGdUJj?= =?utf-8?B?UmpueHg1ZFVzZjRGN3hJS21oeEgya0JLaURKUjZMelFDWmdCV010NmJGUXNq?= =?utf-8?B?OTFvSFZGdG9vaGREK0gweFNmdFFuZmx2Z3VCWWNGMjU4aEN0ZjBlVWRyekRW?= =?utf-8?B?WmRzNERONXNsVEd3UTVsR3N2UldBMWNOZ0JTYjg3ZzlkemdwL3BvdmljSmxV?= =?utf-8?B?L0kySWZDdENHM2ZoNGIyeXNQZGRBbnZxYllYRThpdmY5QktLWHBLbitTVnFl?= =?utf-8?B?RDFaenlTVWV5ZmNxNUFvYlVOTXVmb0p6dHBwV1VDVDExWTBWMFNUN25KVkpi?= =?utf-8?B?cEE5Q0lNcUZVK1Q4SWZhVitaRlpjM1JmZWNPOGNuZFEzZVYzVlpnemNHbUtQ?= =?utf-8?B?aE5PZUt2OVkyeGRVd0FLQ3Q1K21mR3pubnNvcUZOVnFUUlZPWGJNV01PWnJV?= =?utf-8?B?VjVxR0N2Q3VBdE12cmJTTmhzc1gwZTA0ZytpL0FJQ2VoSGVMRGhacmhBQjN2?= =?utf-8?B?dkxXR2p3aWh1RmluUFl5b2RYbkZjajQ0MmZWbDJMUkltV0dZMHdBR1ZWRlRL?= =?utf-8?B?U2J4QVFTTWNhUHFkcFZMZk1LME1EeWYrWVVzMlZzUHBnR0xCK2xjS0J4blNv?= =?utf-8?B?WlhqZlRqeUlZakhVbEtIcW0wdUlnano3TVdXbFN6eTJqTjRkMXBzODNxQnIr?= =?utf-8?B?VzZpOFR0ckZxb1NlZjlQaUJXZkNETkFxOU4rWjV6dm5sbHJCNkZRUW4zdDMw?= =?utf-8?B?RTdvSWRCT3R2WlVPY1l4NU9XL3lybUZ0aGxJeTVhdkVsZDFNSHk1aDZpSTZs?= =?utf-8?B?QmRyb3lMek9URFJpZFVBYVNkVDRCeXZRdWFhT29IRWRlazg5WGtNdE1PQmU2?= =?utf-8?B?azMxY3RpdXpQV2ZuNTNkZ2F1NUVHQmg2MENPRnp4VGpRdndqWWRGbXFrYnZv?= =?utf-8?B?ekRhMUZuODA1ZFF5cXhoeGsxQ3E0dyt2V2tNS0lGM1JOT2h2bmpLTDdveFox?= =?utf-8?B?Vkdjc0lQWm5zbTdOU3ZVVHE3SmpaRm84VWZ6a1ZpRWtiQ2JmY2RWc2xaSTJE?= =?utf-8?B?WUtLem16T0tqeXFjNlI4SzQ3QWkvMXNwdEw4ckhqejYxakMraXpFOHVnY3Bv?= =?utf-8?B?VmhqY1N2TnZETlJLVHN3SWpwRHo0d3dpcFJibVVGTFc4MloxTXdXNkRyWGpQ?= =?utf-8?B?VkszM3lnYmw2L3plM2hRc2N6QktyNXM2bS9BT3NzRDJ1UGwwc2Q3bUdLeCt6?= =?utf-8?B?UENPS2h2MmFka0Z2YzhDWTJGTCtieGVuRUNLdkY1eDg0dEJnZWFPRzRDZERJ?= =?utf-8?B?SVFIa2FuVDROK05pYk1xM3ZiVUN6SVlSZi9aeHBWd2p6VGp1VllBVmxlait0?= =?utf-8?B?UVBuMDFRdnFCdU1wNDFVdkZqeXhJa3MzYnBWemxqL05QS1EyZ1NBL2JLQ05T?= =?utf-8?B?d2hONjBiTldzUnBRVitIcktuUmd6MlFPVHhsMlQ5MUdxY0RUWklBQUlkMWV2?= =?utf-8?B?b2xESUwyS0lNZDFoaWF3L01GMDlkNk1Ma3RicTd1d2lMcUpaNi9rSnZCYzlt?= =?utf-8?B?a0V2ZzhyMkZScWZxNm5rakRUOEZnUXB2MEpJa1E1RGtWSHpUUzhjN0oxZ09j?= =?utf-8?B?MDR0d2J4dXhSTngrcS8yTVhoY2dxeUIweDh5RXZWYVg3K0tienVnSm5WQUxG?= =?utf-8?Q?pGLU=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PH8PR11MB8107.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(376014)(7416014)(1800799024)(7053199007);DIR:OUT;SFP:1101; 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Also, even if the module parameter is increased, > calling pci_ide_set_nr_streams() second time triggers WARN_ON. > > Simplify the code by sticking to the PCI core defaults. > > Fixes: 4be423572da1 ("crypto/ccp: Implement SEV-TIO PCIe IDE (phase1)") > Signed-off-by: Alexey Kardashevskiy > --- > drivers/crypto/ccp/sev-dev-tsm.c | 12 ------------ > 1 file changed, 12 deletions(-) > > diff --git a/drivers/crypto/ccp/sev-dev-tsm.c b/drivers/crypto/ccp/sev-dev-tsm.c > index ea29cd5d0ff9..7407b77c2ef2 100644 > --- a/drivers/crypto/ccp/sev-dev-tsm.c > +++ b/drivers/crypto/ccp/sev-dev-tsm.c > @@ -19,12 +19,6 @@ > > MODULE_IMPORT_NS("PCI_IDE"); > > -#define TIO_DEFAULT_NR_IDE_STREAMS 1 > - > -static uint nr_ide_streams = TIO_DEFAULT_NR_IDE_STREAMS; > -module_param_named(ide_nr, nr_ide_streams, uint, 0644); > -MODULE_PARM_DESC(ide_nr, "Set the maximum number of IDE streams per PHB"); > - Yes, happy to see any reduction in ABI surface, especially module parameters. Acked-by: Dan Williams