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Wysocki" , Borislav Petkov , Hanjun Guo , Mauro Carvalho Chehab , Shuai Xue , Len Brown , Jeshua Smith Subject: [PATCH] ACPI: APEI: Fix ERST timeout unit conversion Date: Tue, 21 Jul 2026 11:25:51 -0700 Message-ID: <20260721182551.2434933-1-nirmoyd@nvidia.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: rnnvmail203.nvidia.com (10.129.68.9) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH1PEPF0000AD7D:EE_|MN2PR12MB4343:EE_ X-MS-Office365-Filtering-Correlation-Id: 00d43816-63f2-4b4a-60ad-08dee755939d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|7416014|376014|82310400026|36860700016|1800799024|6133799003|11063799006|56012099006|10067099003|18002099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(23010399003)(7416014)(376014)(82310400026)(36860700016)(1800799024)(6133799003)(11063799006)(56012099006)(10067099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: caXQjHkqFICAzV0fZQuEAhuDlY5Sttuy+tB13SS1jfLxCjB4beu/rQBVdcGdkKzDy/fgancDlAwkFV6KUyCzMiBDI+5Fou0Mm2qGyaDcGfvi2d3X7PrMdEZl2VbHx7zpi5YjOclsZhYBMnXxPMH7P4umuRYZpM0fvbbmLrT+xyEn3gBsUZfSeZz4IEAsqv4mV1NRTJX56JQQWpYECjj9e/MN1VbOOyeCm24UZ/IcB21/XpAh4lY+0izRgiuCti3W7V54wSC2uFdEZ+/RlQhjgYJ9A0XVPyUGDOZ+1Afk6EJ/pO877nYq66fcnNqcwfYYVrHqPcawyTNBqmM+G0hv4e9ea9eEfUQK8atX/dOLojmvYEQ9JvJtbsHlwpfiNZPIvv+6o4fisBtoWW2aFzPVTjSg4Uhpo+Rto7CbxrmcmaVQcVLR4mnnFyOw8Ln0tzi+ X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Jul 2026 18:26:26.6425 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 00d43816-63f2-4b4a-60ad-08dee755939d X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CH1PEPF0000AD7D.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB4343 Content-Type: text/plain; charset="utf-8" The ACPI specification defines bits 63:32 returned by GET_EXECUTE_OPERATION_TIMINGS as the maximum execution time in microseconds. erst_get_timeout() instead multiplies the value by NSEC_PER_MSEC. Use NSEC_PER_USEC to express the firmware-provided microsecond timeout in the nanosecond units expected by erst_timedout(). Fixes: fac475aab70b ("ACPI: APEI: Use ERST timeout for slow devices") Cc: stable@vger.kernel.org Assisted-by: Codex:gpt-5.6-sol Signed-off-by: Nirmoy Das --- drivers/acpi/apei/erst.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c index bf65e34615314..15ab797641cfc 100644 --- a/drivers/acpi/apei/erst.c +++ b/drivers/acpi/apei/erst.c @@ -108,7 +108,7 @@ static inline u64 erst_get_timeout(void) =20 if (erst_erange.attr & ERST_RANGE_SLOW) { timeout =3D ((erst_erange.timings & ERST_EXEC_TIMING_MAX_MASK) >> - ERST_EXEC_TIMING_MAX_SHIFT) * NSEC_PER_MSEC; + ERST_EXEC_TIMING_MAX_SHIFT) * NSEC_PER_USEC; if (timeout < FIRMWARE_TIMEOUT) timeout =3D FIRMWARE_TIMEOUT; } --=20 2.43.0