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-rw-r--r--drivers/acpi/utilities/utalloc.c53
-rw-r--r--drivers/acpi/utilities/utcopy.c29
-rw-r--r--drivers/acpi/utilities/utdelete.c12
-rw-r--r--drivers/acpi/utilities/utglobal.c52
-rw-r--r--drivers/acpi/utilities/utmisc.c9
-rw-r--r--drivers/acpi/utilities/utobject.c15
-rw-r--r--drivers/acpi/utilities/utxface.c7
7 files changed, 123 insertions, 54 deletions
diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c
index 7dcb67e0b215..241c535c1753 100644
--- a/drivers/acpi/utilities/utalloc.c
+++ b/drivers/acpi/utilities/utalloc.c
@@ -232,7 +232,7 @@ acpi_status acpi_ut_validate_buffer(struct acpi_buffer * buffer)
* RETURN: Status
*
* DESCRIPTION: Validate that the buffer is of the required length or
- * allocate a new buffer. Returned buffer is always zeroed.
+ * allocate a new buffer. Returned buffer is always zeroed.
*
******************************************************************************/
@@ -240,7 +240,7 @@ acpi_status
acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
acpi_size required_length)
{
- acpi_status status = AE_OK;
+ acpi_size input_buffer_length;
/* Parameter validation */
@@ -248,55 +248,58 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
return (AE_BAD_PARAMETER);
}
- switch (buffer->length) {
+ /*
+ * Buffer->Length is used as both an input and output parameter. Get the
+ * input actual length and set the output required buffer length.
+ */
+ input_buffer_length = buffer->length;
+ buffer->length = required_length;
+
+ /*
+ * The input buffer length contains the actual buffer length, or the type
+ * of buffer to be allocated by this routine.
+ */
+ switch (input_buffer_length) {
case ACPI_NO_BUFFER:
- /* Set the exception and returned the required length */
+ /* Return the exception (and the required buffer length) */
- status = AE_BUFFER_OVERFLOW;
- break;
+ return (AE_BUFFER_OVERFLOW);
case ACPI_ALLOCATE_BUFFER:
/* Allocate a new buffer */
buffer->pointer = acpi_os_allocate(required_length);
- if (!buffer->pointer) {
- return (AE_NO_MEMORY);
- }
-
- /* Clear the buffer */
-
- ACPI_MEMSET(buffer->pointer, 0, required_length);
break;
case ACPI_ALLOCATE_LOCAL_BUFFER:
/* Allocate a new buffer with local interface to allow tracking */
- buffer->pointer = ACPI_ALLOCATE_ZEROED(required_length);
- if (!buffer->pointer) {
- return (AE_NO_MEMORY);
- }
+ buffer->pointer = ACPI_ALLOCATE(required_length);
break;
default:
/* Existing buffer: Validate the size of the buffer */
- if (buffer->length < required_length) {
- status = AE_BUFFER_OVERFLOW;
- break;
+ if (input_buffer_length < required_length) {
+ return (AE_BUFFER_OVERFLOW);
}
+ break;
+ }
- /* Clear the buffer */
+ /* Validate allocation from above or input buffer pointer */
- ACPI_MEMSET(buffer->pointer, 0, required_length);
- break;
+ if (!buffer->pointer) {
+ return (AE_NO_MEMORY);
}
- buffer->length = required_length;
- return (status);
+ /* Have a valid buffer, clear it */
+
+ ACPI_MEMSET(buffer->pointer, 0, required_length);
+ return (AE_OK);
}
#ifdef NOT_USED_BY_LINUX
diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c
index 53499ac90988..5b2f7c27b705 100644
--- a/drivers/acpi/utilities/utcopy.c
+++ b/drivers/acpi/utilities/utcopy.c
@@ -42,7 +42,6 @@
*/
#include <acpi/acpi.h>
-#include <acpi/amlcode.h>
#include <acpi/acnamesp.h>
@@ -176,20 +175,24 @@ acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object,
/* This is an object reference. */
- switch (internal_object->reference.opcode) {
- case AML_INT_NAMEPATH_OP:
-
- /* For namepath, return the object handle ("reference") */
-
- default:
-
- /* We are referring to the namespace node */
+ switch (internal_object->reference.class) {
+ case ACPI_REFCLASS_NAME:
+ /*
+ * For namepath, return the object handle ("reference")
+ * We are referring to the namespace node
+ */
external_object->reference.handle =
internal_object->reference.node;
external_object->reference.actual_type =
acpi_ns_get_type(internal_object->reference.node);
break;
+
+ default:
+
+ /* All other reference types are unsupported */
+
+ return_ACPI_STATUS(AE_TYPE);
}
break;
@@ -533,7 +536,7 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object,
/* TBD: should validate incoming handle */
- internal_object->reference.opcode = AML_INT_NAMEPATH_OP;
+ internal_object->reference.class = ACPI_REFCLASS_NAME;
internal_object->reference.node =
external_object->reference.handle;
break;
@@ -743,11 +746,11 @@ acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
* We copied the reference object, so we now must add a reference
* to the object pointed to by the reference
*
- * DDBHandle reference (from Load/load_table is a special reference,
- * it's Reference.Object is the table index, so does not need to
+ * DDBHandle reference (from Load/load_table) is a special reference,
+ * it does not have a Reference.Object, so does not need to
* increase the reference count
*/
- if (source_desc->reference.opcode == AML_LOAD_OP) {
+ if (source_desc->reference.class == ACPI_REFCLASS_TABLE) {
break;
}
diff --git a/drivers/acpi/utilities/utdelete.c b/drivers/acpi/utilities/utdelete.c
index 42609d3a8aa9..d197c6b29e17 100644
--- a/drivers/acpi/utilities/utdelete.c
+++ b/drivers/acpi/utilities/utdelete.c
@@ -45,7 +45,6 @@
#include <acpi/acinterp.h>
#include <acpi/acnamesp.h>
#include <acpi/acevents.h>
-#include <acpi/amlcode.h>
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utdelete")
@@ -548,8 +547,8 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
* reference must track changes to the ref count of the index or
* target object.
*/
- if ((object->reference.opcode == AML_INDEX_OP) ||
- (object->reference.opcode == AML_INT_NAMEPATH_OP)) {
+ if ((object->reference.class == ACPI_REFCLASS_INDEX) ||
+ (object->reference.class == ACPI_REFCLASS_NAME)) {
next_object = object->reference.object;
}
break;
@@ -586,6 +585,13 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
ACPI_EXCEPTION((AE_INFO, status,
"Could not update object reference count"));
+ /* Free any stacked Update State objects */
+
+ while (state_list) {
+ state = acpi_ut_pop_generic_state(&state_list);
+ acpi_ut_delete_generic_state(state);
+ }
+
return_ACPI_STATUS(status);
}
diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
index a6e71b801d2d..670551b95e56 100644
--- a/drivers/acpi/utilities/utglobal.c
+++ b/drivers/acpi/utilities/utglobal.c
@@ -281,7 +281,6 @@ struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
/* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
ACPI_BITPOSITION_RT_CLOCK_ENABLE,
ACPI_BITMASK_RT_CLOCK_ENABLE},
- /* ACPI_BITREG_WAKE_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, 0, 0},
/* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE,
ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
@@ -575,6 +574,47 @@ char *acpi_ut_get_descriptor_name(void *object)
}
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_reference_name
+ *
+ * PARAMETERS: Object - An ACPI reference object
+ *
+ * RETURN: Pointer to a string
+ *
+ * DESCRIPTION: Decode a reference object sub-type to a string.
+ *
+ ******************************************************************************/
+
+/* Printable names of reference object sub-types */
+
+static const char *acpi_gbl_ref_class_names[] = {
+ /* 00 */ "Local",
+ /* 01 */ "Argument",
+ /* 02 */ "RefOf",
+ /* 03 */ "Index",
+ /* 04 */ "DdbHandle",
+ /* 05 */ "Named Object",
+ /* 06 */ "Debug"
+};
+
+const char *acpi_ut_get_reference_name(union acpi_operand_object *object)
+{
+ if (!object)
+ return "NULL Object";
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND)
+ return "Not an Operand object";
+
+ if (object->common.type != ACPI_TYPE_LOCAL_REFERENCE)
+ return "Not a Reference object";
+
+ if (object->reference.class > ACPI_REFCLASS_MAX)
+ return "Unknown Reference class";
+
+ return acpi_gbl_ref_class_names[object->reference.class];
+}
+
#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
/*
* Strings and procedures used for debug only
@@ -677,14 +717,14 @@ u8 acpi_ut_valid_object_type(acpi_object_type type)
*
* PARAMETERS: None
*
- * RETURN: None
+ * RETURN: Status
*
* DESCRIPTION: Init library globals. All globals that require specific
* initialization should be initialized here!
*
******************************************************************************/
-void acpi_ut_init_globals(void)
+acpi_status acpi_ut_init_globals(void)
{
acpi_status status;
u32 i;
@@ -695,7 +735,7 @@ void acpi_ut_init_globals(void)
status = acpi_ut_create_caches();
if (ACPI_FAILURE(status)) {
- return;
+ return_ACPI_STATUS(status);
}
/* Mutex locked flags */
@@ -772,8 +812,8 @@ void acpi_ut_init_globals(void)
acpi_gbl_display_final_mem_stats = FALSE;
#endif
- return_VOID;
+ return_ACPI_STATUS(AE_OK);
}
ACPI_EXPORT_SYMBOL(acpi_dbg_level)
- ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
+ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c
index f34be6773556..9089a158a874 100644
--- a/drivers/acpi/utilities/utmisc.c
+++ b/drivers/acpi/utilities/utmisc.c
@@ -995,6 +995,15 @@ acpi_ut_walk_package_tree(union acpi_operand_object * source_object,
state->pkg.
this_target_obj, 0);
if (!state) {
+
+ /* Free any stacked Update State objects */
+
+ while (state_list) {
+ state =
+ acpi_ut_pop_generic_state
+ (&state_list);
+ acpi_ut_delete_generic_state(state);
+ }
return_ACPI_STATUS(AE_NO_MEMORY);
}
}
diff --git a/drivers/acpi/utilities/utobject.c b/drivers/acpi/utilities/utobject.c
index 916eff399eb3..c354e7a42bcd 100644
--- a/drivers/acpi/utilities/utobject.c
+++ b/drivers/acpi/utilities/utobject.c
@@ -43,7 +43,6 @@
#include <acpi/acpi.h>
#include <acpi/acnamesp.h>
-#include <acpi/amlcode.h>
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utobject")
@@ -478,8 +477,8 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
case ACPI_TYPE_LOCAL_REFERENCE:
- switch (internal_object->reference.opcode) {
- case AML_INT_NAMEPATH_OP:
+ switch (internal_object->reference.class) {
+ case ACPI_REFCLASS_NAME:
/*
* Get the actual length of the full pathname to this object.
@@ -503,8 +502,10 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
* required eventually.
*/
ACPI_ERROR((AE_INFO,
- "Unsupported Reference opcode=%X in object %p",
- internal_object->reference.opcode,
+ "Cannot convert to external object - "
+ "unsupported Reference Class [%s] %X in object %p",
+ acpi_ut_get_reference_name(internal_object),
+ internal_object->reference.class,
internal_object));
status = AE_TYPE;
break;
@@ -513,7 +514,9 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
default:
- ACPI_ERROR((AE_INFO, "Unsupported type=%X in object %p",
+ ACPI_ERROR((AE_INFO, "Cannot convert to external object - "
+ "unsupported type [%s] %X in object %p",
+ acpi_ut_get_object_type_name(internal_object),
ACPI_GET_OBJECT_TYPE(internal_object),
internal_object));
status = AE_TYPE;
diff --git a/drivers/acpi/utilities/utxface.c b/drivers/acpi/utilities/utxface.c
index f8bdadf3c32f..c198a4d40583 100644
--- a/drivers/acpi/utilities/utxface.c
+++ b/drivers/acpi/utilities/utxface.c
@@ -81,7 +81,12 @@ acpi_status __init acpi_initialize_subsystem(void)
/* Initialize all globals used by the subsystem */
- acpi_ut_init_globals();
+ status = acpi_ut_init_globals();
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "During initialization of globals"));
+ return_ACPI_STATUS(status);
+ }
/* Create the default mutex objects */
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-01 03:06:44 +0000