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

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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>
This commit is contained in:
Bob Moore 2012-08-17 10:30:28 +08:00 committed by Len Brown
parent a950c135e5
commit 28f538b56d
2 changed files with 28 additions and 0 deletions
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14
drivers/acpi/acpica/dswload.c
View File

@ -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 */

14
drivers/acpi/acpica/dswload2.c
View File

@ -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 */