linux-kernel - [PATCH 07/15] ACPICA: ACPI 6.0/iASL: Add support for the External AML opcode

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Message-Id: <5b32cad1ac2c9b90d9819f08431e5f8a944edf00.1455857583.git.lv.zheng@intel.com>
Date:	Fri, 19 Feb 2016 14:16:49 +0800
From:	Lv Zheng <lv.zheng@...el.com>
To:	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <len.brown@...el.com>
Cc:	Lv Zheng <lv.zheng@...el.com>, Lv Zheng <zetalog@...il.com>,
	<linux-kernel@...r.kernel.org>, linux-acpi@...r.kernel.org,
	"David E. Box" <david.e.box@...ux.intel.com>,
	Bob Moore <robert.moore@...el.com>
Subject: [PATCH 07/15] ACPICA: ACPI 6.0/iASL: Add support for the External AML opcode

From: "David E. Box" <david.e.box@...ux.intel.com>

ACPICA commit 882892feeafe8b8e5be10463133405cd4f1309d9

Support for both the compiler and disassembler.
Also, the interpreter will ignore this opcode if it
is ever encountered (should not happen).
David Box.

Link: https://github.com/acpica/acpica/commit/882892fe
Signed-off-by: David E. Box <david.e.box@...ux.intel.com>
Signed-off-by: Bob Moore <robert.moore@...el.com>
Signed-off-by: Lv Zheng <lv.zheng@...el.com>
---
 drivers/acpi/acpica/exoparg3.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/acpica/exoparg3.c b/drivers/acpi/acpica/exoparg3.c
index 28eb861..5aa21c4 100644
--- a/drivers/acpi/acpica/exoparg3.c
+++ b/drivers/acpi/acpica/exoparg3.c
@@ -123,8 +123,10 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state)
 		 * op is intended for use by disassemblers in order to properly
 		 * disassemble control method invocations. The opcode or group of
 		 * opcodes should be surrounded by an "if (0)" clause to ensure that
-		 * AML interpreters never see the opcode.
+		 * AML interpreters never see the opcode. Thus, something is
+		 * wrong if an external opcode ever gets here.
 		 */
+		ACPI_ERROR((AE_INFO, "Executed External Op"));
 		status = AE_OK;
 		goto cleanup;
 
-- 
1.7.10