linux-kernel - [PATCH v1 13/26] ACPICA: Fix asltests using the Fatal() opcode

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Message-ID: <2052065.usQuhbGJ8B@rafael.j.wysocki>
Date: Wed, 14 Jan 2026 13:27:47 +0100
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Linux ACPI <linux-acpi@...r.kernel.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
 "Dumbre, Saket" <saket.dumbre@...el.com>
Subject: [PATCH v1 13/26] ACPICA: Fix asltests using the Fatal() opcode

From: Armin Wolf <W_Armin@....de>

Some asltests test the behavior of the Fatal() opcode and thus require
that said opcode does not return an error when called.

Introduce a compile-time option called ACPI_CONTINUE_ON_FATAL to
instruct the executor to continue the execution of AML bytecode when
encountering a Fatal() opcode. Also update the asltest to use this
new option.

Fixes: ("Abort AML bytecode execution when executing AML_FATAL_OP")
Link: https://github.com/acpica/acpica/commit/428b3410c490
Signed-off-by: Armin Wolf <W_Armin@....de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/acpi/acpica/exoparg3.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/acpi/acpica/exoparg3.c b/drivers/acpi/acpica/exoparg3.c
index c8c8c4e49563..2fc8070814e3 100644
--- a/drivers/acpi/acpica/exoparg3.c
+++ b/drivers/acpi/acpica/exoparg3.c
@@ -72,11 +72,18 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state)

 		acpi_os_signal(ACPI_SIGNAL_FATAL, &fatal);

+#ifndef ACPI_CONTINUE_ON_FATAL
 		/*
 		 * Might return while OS is shutting down, so abort the AML execution
 		 * by returning an error.
 		 */
 		return_ACPI_STATUS(AE_ERROR);
+#else
+		/*
+		 * The alstests require that the Fatal() opcode does not return an error.
+		 */
+		return_ACPI_STATUS(AE_OK);
+#endif

 	case AML_EXTERNAL_OP:
 		/*
-- 
2.51.0