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Mon, 13 Jan 2025 03:11:02 -0600 From: Wayne Lin To: CC: , , , , Wayne Lin Subject: [PATCH v4 0/2] Fix drm RAD print Date: Mon, 13 Jan 2025 17:10:58 +0800 Message-ID: <20250113091100.3314533-1-Wayne.Lin@amd.com> X-Mailer: git-send-email 2.37.3 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Received-SPF: None (SATLEXMB03.amd.com: Wayne.Lin@amd.com does not designate permitted sender hosts) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS3PEPF000099DD:EE_|PH7PR12MB9102:EE_ X-MS-Office365-Filtering-Correlation-Id: 70cbb81d-cfaa-473a-6dfc-08dd33b2361f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|376014|1800799024|36860700013|82310400026; X-Microsoft-Antispam-Message-Info: =?utf-8?B?QTV2YThyS0dEOEhqbE9RZ0NqSzNmdXQyODlpNkMrMVlURU92TU50eFlGZlUv?= =?utf-8?B?YmZFUGpSa2RpOUdERHo5cFJ6dkN1anBmRElLSktkUDQxZlIxTzVLYy9XR3Fr?= =?utf-8?B?WlFsTG4wcWhCT2tVd3o3Qzk3MHRiUjN1VEpndUNkamRUUk9INFRWQlpuRGpp?= =?utf-8?B?VEtuZUkySDdJODlZU2k4WlJPMVhDbVRMdlQxa1JXT2FzSXZZUUJDNzFKVE5k?= =?utf-8?B?TG1oMk1INnY0Lzh3akRGT1JUV0Y0TUw2dGE0NjBhS1MvK0JEVTZSb2JqOVl2?= =?utf-8?B?TWorUHc1RldUaE5KZUNjbDRpdjZwR1ZhNGw4WDBxM1VlU0pmclQ2NEdwWTI4?= =?utf-8?B?Um05bFgrdklPTGhNQU9xeTg0VFVodndLcFF5VWJDTjN0RVhEQm1CTEVQdVJY?= =?utf-8?B?dEY5WG1Vcm1vS3Q1SDNtTjJwdU5XSkRhbUVyenh1ZVBDSG10bVNwQy92dmln?= =?utf-8?B?TERsY3ZmMHNSVzBDclB4RmI4aHZYai9jZVJRN3ppTXplQVRvTEVpWnZJWlpB?= =?utf-8?B?MTJvaWtKaUNlNTU1dVh5Y3ZTRmhURVc4VW5oVEJoWnljUTVtS25pdWNTSXlD?= =?utf-8?B?N3Z4bDJjeVNiU3crbG9SMXZ0dHBXSjVMS1B6aVNCY2dQeHRhSEhwaUZNTmxt?= =?utf-8?B?ZXlRSkZYMnEwUUtISVFRTy9IOWlBWWRiNUo1akNsUUJwT0pjVi91QWxLWFQy?= =?utf-8?B?cCtHWFo4aEZDejA2SGFtMXJQQUlPbDRWQjNHZjhCQnlEVDFVV3dMek5GOFo3?= =?utf-8?B?RVhmVG1yMzQxQXljTnB4bWlPanVzbS8zeTlhdGFmNXRTSnZEMlBaaWFhMXpB?= =?utf-8?B?WWdyTm1iT0JnVjRsb1liUnU4T1VBYXVmVFVNNW9LMVZ0aVRnNG5SZms3SCsr?= =?utf-8?B?clhBdFVRcG5PWHJwb0xEVFllcDZ3ZStpOXFuYk1aRzNnSzlSVk84aENqYjJP?= =?utf-8?B?Z1d6SXcvOTJUd1RScXRJRXB5SFc1QS9abGoyeGhJeDB3aFdIYWJJd2tiM3lH?= =?utf-8?B?VmFmTnJsUVk1ZkFHanZ3VDZ5THY0T2RhL2IwczZXMzdhUEZzNmJLaUdyTEQw?= =?utf-8?B?TlQvR2tyUWJKTll6RWdvZnk5VXd5SEhxMG94d081QVFVcXA3ZFdTZE1YclFk?= =?utf-8?B?bjdEdlNvSXY2cENZMWtGcmRMc2ZrQjBKSU5aM0dOSEw5aXB0YURKc0ZBWUhP?= =?utf-8?B?b0dkNjJpcUxobVBDWCtYNVhEaGxYUll0UVZoLzBIYzI3VVFjM0o0K0NVSGY5?= =?utf-8?B?SFZWN1hvM05pdmVpVzdBb040bnhXV201eHhWSWFYTmx5anFOQmJoQlRjUExH?= =?utf-8?B?dy9VM2gwU29NUjJKNGU5MkJuamt4OCtqV3M1VHhTOEZuOUxVbHdlem90U2Jn?= =?utf-8?B?aVR5dkhZUUt1L1U2ZVk1OUUyQmJxNElMcE9ydlRYUzFlM1R4akxydFVMNHpz?= =?utf-8?B?RFNPUExIL0twKzQ3bGMvRTBJYURBUlA0MWkyTC9ON1hmbXFQbzk4UmoxajFy?= =?utf-8?B?aUpkQkVMUWROZC8vbE4rckxIak1yeTR0azNxc3NhVDJIblFieHkwS0VhTHdP?= =?utf-8?B?S2xGOFY2UGY2SUwyNDlubERNSDR4OC9Id3F0MWpYbFozRWVSVXBVYzkxTklZ?= =?utf-8?B?VUtOeWFxV3lLcTdobnhZNk9Bclc5R1BmVW00OXNXVkFvWTl1R1J6a3g3MXBq?= =?utf-8?B?Qm5JSCtqZElmOUpFSmNFU3JzSVoydFV1WWQrZ2pjbEFWYkFtdjZwNlZCLzZa?= =?utf-8?B?MFY3eHR0TndYcHVaejdXVVBBZDJEY05iTmlNNFN0UWNZUWFIdDFMTmZHY1V3?= =?utf-8?B?SVJ0L3EzS3UzSCtSdmhSV3k3QzByZ0s5T0l6UmRYbjB3VWJJSUJmY3hwTGJw?= =?utf-8?B?V1ZxeDhhK2IxVit0MXBXUmQxcHpWZUVzaHZuRjdTU0ZybWNUMmFMZUswTHVH?= =?utf-8?Q?UqMOfIAwGDs=3D?= X-Forefront-Antispam-Report: CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB03.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230040)(376014)(1800799024)(36860700013)(82310400026); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Jan 2025 09:11:06.0765 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 70cbb81d-cfaa-473a-6dfc-08dd33b2361f 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=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS3PEPF000099DD.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB9102 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This is v4 of [1], with the following changes: - Fix warning caught by kernel test robot: drivers/gpu/drm/display/drm_dp_mst_topology.c: In function 'drm_dp_mst_rad_to_str': >> drivers/gpu/drm/display/drm_dp_mst_topology.c:201:81: warning: passing argument 2 of 'drm_dp_mst_get_ufp_num_at_lct_from_rad' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 201 | unpacked_rad[i] = drm_dp_mst_get_ufp_num_at_lct_from_rad(i + 1, rad); | ^~~ drivers/gpu/drm/display/drm_dp_mst_topology.c:179:52: note: expected 'u8 *' {aka 'unsigned char *'} but argument is of type 'const u8 *' {aka 'const unsigned char *'} 179 | drm_dp_mst_get_ufp_num_at_lct_from_rad(u8 lct, u8 *rad) | ~~~~^~~ vim +201 drivers/gpu/drm/display/drm_dp_mst_topology.c 193 194 static int 195 drm_dp_mst_rad_to_str(const u8 rad[8], u8 lct, char *out, size_t len) 196 { 197 int i; 198 u8 unpacked_rad[16] = {}; 199 200 for (i = 0; i < lct; i++) > 201 unpacked_rad[i] = drm_dp_mst_get_ufp_num_at_lct_from_rad(i + 1, rad); 202 203 /* TODO: Eventually add something to printk so we can format the rad 204 * like this: 1.2.3 205 */ 206 return snprintf(out, len, "%*phC", lct, unpacked_rad); 207 } 208 Cc: Imre Deak Cc: Ville Syrjälä Cc: Harry Wentland Cc: Lyude Paul [1] https://patchwork.freedesktop.org/series/141832/ Wayne Lin (2): drm/dp_mst: Fix drm RAD print drm/dp_mst: Add helper to get port number at specific LCT from RAD drivers/gpu/drm/display/drm_dp_mst_topology.c | 31 +++++++++++++------ include/drm/display/drm_dp_mst_helper.h | 7 +++++ 2 files changed, 28 insertions(+), 10 deletions(-) -- 2.37.3