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ACPICA: Add option to disable Package object name resolution errors

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ACPICA commit a6c3c725c44dd44ad9d3f2b2a64351fdbe6e0014

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.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=198167
Link: https://github.com/acpica/acpica/commit/a6c3c725
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 2018-02-15 13:09:31 -08:00 committed by Rafael J. Wysocki
parent 5a8361f7ec
commit 959c38a7e1
2 changed files with 32 additions and 7 deletions
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38
drivers/acpi/acpica/dspkginit.c
View File

@ -389,11 +389,12 @@ static void
acpi_ds_resolve_package_element(union acpi_operand_object **element_ptr)
{
acpi_status status;
acpi_status status2;
union acpi_generic_state scope_info;
union acpi_operand_object *element = *element_ptr;
struct acpi_namespace_node *resolved_node;
struct acpi_namespace_node *original_node;
char *external_path = NULL;
char *external_path = "";
acpi_object_type type;
ACPI_FUNCTION_TRACE(ds_resolve_package_element);
@ -417,17 +418,40 @@ acpi_ds_resolve_package_element(union acpi_operand_object **element_ptr)
ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
NULL, &resolved_node);
if (ACPI_FAILURE(status)) {
status = acpi_ns_externalize_name(ACPI_UINT32_MAX,
(char *)element->reference.
aml, NULL, &external_path);
#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) {
/* Reference 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);
ACPI_EXCEPTION((AE_INFO, status,
"Could not find/resolve named package element: %s",
"While resolving a named reference package element - %s",
external_path));
if (ACPI_SUCCESS(status2)) {
ACPI_FREE(external_path);
}
/* Not found, set the element to NULL */
/* Could not resolve name, set the element to NULL */
ACPI_FREE(external_path);
acpi_ut_remove_reference(*element_ptr);
*element_ptr = NULL;
return_VOID;

1
include/acpi/platform/aclinux.h
View File

@ -58,6 +58,7 @@
#define ACPI_USE_SYSTEM_CLIBRARY
#define ACPI_USE_DO_WHILE_0
#define ACPI_IGNORE_PACKAGE_RESOLUTION_ERRORS
#ifdef __KERNEL__