Merge branch 'acpica'

* acpica: (21 commits)
  ACPICA: Update version to 20180313
  ACPICA: Cleanup/simplify module-level code support
  ACPICA: Events: add a return on failure from acpi_hw_register_read
  ACPICA: adding SPDX headers
  ACPICA: Rename a global for clarity, no functional change
  ACPICA: macros: fix ACPI_ERROR_NAMESPACE macro
  ACPICA: Change a compile-time option to a runtime option
  ACPICA: Remove calling of _STA from acpi_get_object_info()
  ACPICA: AML Debug Object: Don't ignore output of zero-length strings
  ACPICA: Fix memory leak on unusual memory leak
  ACPICA: Events: Dispatch GPEs after enabling for the first time
  ACPICA: Events: Add parallel GPE handling support to fix potential redundant _Exx evaluations
  ACPICA: Events: Stop unconditionally clearing ACPI IRQs during suspend/resume
  ACPICA: acpi: acpica: fix acpi operand cache leak in nseval.c
  ACPICA: Update version to 20180209
  ACPICA: Add option to disable Package object name resolution errors
  ACPICA: Integrate package handling with module-level code
  ACPICA: Revert "Fix for implicit result conversion for the To____ functions"
  ACPICA: Update for some debug output. No functional change
  ACPICA: Update error message, no functional change
  ...

1 files changed, 28 insertions, 40 deletions

diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c
index c2d883b8c45e..64ba80ede0ad 100644
--- a/drivers/acpi/acpica/nseval.c
+++ b/drivers/acpi/acpica/nseval.c
@@ -1,46 +1,10 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
 /*******************************************************************************
  *
  * Module Name: nseval - Object evaluation, includes control method execution
  *
  ******************************************************************************/
 
-/*
- * Copyright (C) 2000 - 2018, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions, and the following disclaimer,
- *    without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- *    substantially similar to the "NO WARRANTY" disclaimer below
- *    ("Disclaimer") and any redistribution must be conditioned upon
- *    including a substantially similar Disclaimer requirement for further
- *    binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- *    of any contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acparser.h"
@@ -187,6 +151,7 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
 	 * 3) The object is not a method -- just return it's current value
 	 */
 	switch (acpi_ns_get_type(info->node)) {
+	case ACPI_TYPE_ANY:
 	case ACPI_TYPE_DEVICE:
 	case ACPI_TYPE_EVENT:
 	case ACPI_TYPE_MUTEX:
@@ -194,11 +159,12 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
 	case ACPI_TYPE_THERMAL:
 	case ACPI_TYPE_LOCAL_SCOPE:
 		/*
-		 * 1) Disallow evaluation of certain object types. For these,
-		 *    object evaluation is undefined and not supported.
+		 * 1) Disallow evaluation of these object types. For these,
+		 *    object evaluation is undefined.
 		 */
 		ACPI_ERROR((AE_INFO,
-			    "%s: Evaluation of object type [%s] is not supported",
+			    "%s: This object type [%s] "
+			    "never contains data and cannot be evaluated",
 			    info->full_pathname,
 			    acpi_ut_get_type_name(info->node->type)));
 
@@ -308,6 +274,14 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
 		/* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */
 
 		status = AE_OK;
+	} else if (ACPI_FAILURE(status)) {
+
+		/* If return_object exists, delete it */
+
+		if (info->return_object) {
+			acpi_ut_remove_reference(info->return_object);
+			info->return_object = NULL;
+		}
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
@@ -336,6 +310,17 @@ cleanup:
  * DESCRIPTION: Execute all elements of the global module-level code list.
  *              Each element is executed as a single control method.
  *
+ * NOTE: With this option enabled, each block of detected executable AML
+ * code that is outside of any control method is wrapped with a temporary
+ * control method object and placed on a global list. The methods on this
+ * list are executed below.
+ *
+ * This function executes the module-level code for all tables only after
+ * all of the tables have been loaded. It is a legacy option and is
+ * not compatible with other ACPI implementations. See acpi_ns_load_table.
+ *
+ * This function will be removed when the legacy option is removed.
+ *
  ******************************************************************************/
 
 void acpi_ns_exec_module_code_list(void)
@@ -351,6 +336,9 @@ void acpi_ns_exec_module_code_list(void)
 
 	next = acpi_gbl_module_code_list;
 	if (!next) {
+		ACPI_DEBUG_PRINT((ACPI_DB_INIT_NAMES,
+				  "Legacy MLC block list is empty\n"));
+
 		return_VOID;
 	}