From: Bartosz Szczepanek <bsz@amazon.de>
Date: Wed, 23 Apr 2025 08:56:36 +0000 (+0000)
Subject: ACPI: tables: Improve logging around acpi_initialize_tables()
X-Git-Tag: v6.16-rc1~161^2~3^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8e66be071bd4d44e8870a37d2e1a9109c47ef22e;p=thirdparty%2Fkernel%2Flinux.git

ACPI: tables: Improve logging around acpi_initialize_tables()

Emit a warning that includes return code in a readable format. Example:

  ACPI: Failed to initialize tables, status=0x5 (AE_NOT_FOUND)

No other functional changes intended.

Signed-off-by: Bartosz Szczepanek <bsz@amazon.de>
Link: https://patch.msgid.link/20250423085637.38658-1-bsz@amazon.de
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index 0a9ade7117bd9..fa9bb8c8ce953 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -719,8 +719,12 @@ int __init acpi_locate_initial_tables(void)
 	}
 
 	status = acpi_initialize_tables(initial_tables, ACPI_MAX_TABLES, 0);
-	if (ACPI_FAILURE(status))
+	if (ACPI_FAILURE(status)) {
+		const char *msg = acpi_format_exception(status);
+
+		pr_warn("Failed to initialize tables, status=0x%x (%s)", status, msg);
 		return -EINVAL;
+	}
 
 	return 0;
 }