From: Bob Moore <robert.moore@intel.com>
Date: Fri, 17 Aug 2012 02:30:28 +0000 (+0800)
Subject: ACPICA: Enable Scope change to root during module-level code execution.
X-Git-Tag: v3.7-rc1~89^2^2~16
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=28f538b56d321dd5e027267f8240f06ce045e0aa;p=platform%2Fkernel%2Flinux-exynos.git

ACPICA: Enable Scope change to root during module-level code execution.

Allows constructs like this:
    If (XXXX)
        Scope (\)
        ...

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c
index 552aa3a..5575100 100644
--- a/drivers/acpi/acpica/dswload.c
+++ b/drivers/acpi/acpica/dswload.c
@@ -230,6 +230,20 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
 			walk_state->scope_info->common.value = ACPI_TYPE_ANY;
 			break;
 
+		case ACPI_TYPE_METHOD:
+
+			/*
+			 * Allow scope change to root during execution of module-level
+			 * code. Root is typed METHOD during this time.
+			 */
+			if ((node == acpi_gbl_root_node) &&
+			    (walk_state->
+			     parse_flags & ACPI_PARSE_MODULE_LEVEL)) {
+				break;
+			}
+
+			/*lint -fallthrough */
+
 		default:
 
 			/* All other types are an error */
diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c
index ae71477..89c0114 100644
--- a/drivers/acpi/acpica/dswload2.c
+++ b/drivers/acpi/acpica/dswload2.c
@@ -230,6 +230,20 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
 			walk_state->scope_info->common.value = ACPI_TYPE_ANY;
 			break;
 
+		case ACPI_TYPE_METHOD:
+
+			/*
+			 * Allow scope change to root during execution of module-level
+			 * code. Root is typed METHOD during this time.
+			 */
+			if ((node == acpi_gbl_root_node) &&
+			    (walk_state->
+			     parse_flags & ACPI_PARSE_MODULE_LEVEL)) {
+				break;
+			}
+
+			/*lint -fallthrough */
+
 		default:
 
 			/* All other types are an error */