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Wysocki" CC: Len Brown , , Subject: Re: [PATCH] ACPI: sysfs: Expose BDAT data region Date: Mon, 12 Oct 2026 11:51:48 -0700 Message-ID: <20261012185148.3192127-1-jamien@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: <20261009232955.866131-1-jamien@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF00012E80:EE_|LV2PR12MB5991:EE_ X-MS-Office365-Filtering-Correlation-Id: f03d4ce8-0b45-4278-04bb-08df2891edf5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|23010399003|36860700016|1800799024|376014|10067099003|18002099003|22082099003|13003099007|11063799006|261009223027099003|4143699003|56012099006; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(23010399003)(36860700016)(1800799024)(376014)(10067099003)(18002099003)(22082099003)(13003099007)(11063799006)(261009223027099003)(4143699003)(56012099006);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: CUOZw0Me5w4y4nVLEJVl3YjlAdznonuXwG+sOUCKj5bXATHjd5GGlMBG50N0hMQMTn4qUoocj4+8yRN1wlrbVA8kuRSVjjPB2Lh+agsGorOJ/iVba/kBuqbSk2sfTGq5ZJ4vmutmkC7v0R0iWERdQnJG+td97YS/KCUgyFsV18h4QQusurGfze3+shz8L+pVOYrmtHZXE+bjMZjTJCkH+1Gnbs35R3hnxK8Jb8TDEb4JoBJIueP6Oxc4HhKq5kEjKS3JJVXPtCyz460of0aeg71xhtnD2MUDWBN0joTW3pK+35x0bTuzkuAayne0NU4S0sZU5MDHHnPsrZp2Q+zeSbet195w37FJrwj0qi29y30H3r9aFcEbRALIVXVNnSn3FzZPuy9orvn8s/f4MlAHRN062npGh+7Gt5FRou5vPN6u51X4ea0XSKThzvbmAVfH X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Oct 2026 18:52:13.6422 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f03d4ce8-0b45-4278-04bb-08df2891edf5 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF00012E80.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV2PR12MB5991 On Mon, Oct 12, 2026 at 11:15 AM Rafael J. Wysocki wrote: > Please see the Sashiko feedback on this patch: > > https://sashiko.dev/#/patchset/20261009232955.866131-1-jamien%40nvidia.com > > and let me know what you think about it. I agree with the Sashiko findings, and it looks like BERT and CCEL have the same problem, going back to commit 7dae6326ed76 ("ACPI / sysfs: Extend ACPI sysfs to provide access to boot error region"). I'll send a v2 with a preparatory patch that moves sysfs_create_bin_file() and the kfree() on failure into acpi_table_data_init(), so it is fixed for all three tables, with the BDAT patch on top. The other concern in the report, the direct returns in the acpi_tables_sysfs_init() loop, was there before this patch, so I'd rather handle it separately if that's okay. Jamie