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ACPICA: Change a compile-time option to a runtime option 

Changes the option to ignore package resolution errors into
a runtime option.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bob Moore 2018-03-14 16:13:04 -07:00 committed by Rafael J. Wysocki
parent e7c2c3c909
commit 34f206fd75
2 changed files with 26 additions and 16 deletions
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32
drivers/acpi/acpica/dspkginit.c
View File

@ -413,32 +413,32 @@ acpi_ds_resolve_package_element(union acpi_operand_object **element_ptr)
scope_info.scope.node = element->reference.node; /* Prefix node */
status = acpi_ns_lookup(&scope_info, (char *)element->reference.aml, /* Pointer to AML path */
status = acpi_ns_lookup(&scope_info, (char *)element->reference.aml,
ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
NULL, &resolved_node);
if (ACPI_FAILURE(status)) {
#if defined ACPI_IGNORE_PACKAGE_RESOLUTION_ERRORS && !defined ACPI_APPLICATION
/*
* For the kernel-resident ACPICA, optionally be silent about the
* NOT_FOUND case. Although this is potentially a serious problem,
* it can generate a lot of noise/errors on platforms whose
* firmware carries around a bunch of unused Package objects.
* To disable these errors, define ACPI_IGNORE_PACKAGE_RESOLUTION_ERRORS
* in the OS-specific header.
*
* All errors are always reported for ACPICA applications such as
* acpi_exec.
*/
if (status == AE_NOT_FOUND) {
if ((status == AE_NOT_FOUND)
&& acpi_gbl_ignore_package_resolution_errors) {
/*
* Optionally be silent about the NOT_FOUND case for the referenced
* name. Although this is potentially a serious problem,
* it can generate a lot of noise/errors on platforms whose
* firmware carries around a bunch of unused Package objects.
* To disable these errors, set this global to TRUE:
* acpi_gbl_ignore_package_resolution_errors
*
* If the AML actually tries to use such a package, the unresolved
* element(s) will be replaced with NULL elements.
*/
/* Reference name not found, set the element to NULL */
/* Referenced name not found, set the element to NULL */
acpi_ut_remove_reference(*element_ptr);
*element_ptr = NULL;
return_VOID;
}
#endif
status2 = acpi_ns_externalize_name(ACPI_UINT32_MAX,
(char *)element->reference.
aml, NULL, &external_path);

10
include/acpi/acpixf.h
View File

@ -270,6 +270,16 @@ ACPI_INIT_GLOBAL(u8, acpi_gbl_reduced_hardware, FALSE);
*/
ACPI_INIT_GLOBAL(u32, acpi_gbl_max_loop_iterations, ACPI_MAX_LOOP_TIMEOUT);
/*
* Optionally ignore AE_NOT_FOUND errors from named reference package elements
* during DSDT/SSDT table loading. This reduces error "noise" in platforms
* whose firmware is carrying around a bunch of unused package objects that
* refer to non-existent named objects. However, If the AML actually tries to
* use such a package, the unresolved element(s) will be replaced with NULL
* elements.
*/
ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_package_resolution_errors, FALSE);
/*
* This mechanism is used to trace a specified AML method. The method is
* traced each time it is executed.