1 files changed, 17 insertions, 12 deletions

diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 599657eac2d4..75ec153338e7 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -639,46 +639,51 @@ typedef u8 acpi_adr_space_type;
 /*
  * External ACPI object definition
  */
+
+/*
+ * Note: Type == ACPI_TYPE_ANY (0) is used to indicate a NULL package element
+ * or an unresolved named reference.
+ */
 union acpi_object {
         acpi_object_type type;  /* See definition of acpi_ns_type for values */
         struct {
-                acpi_object_type type;
+                acpi_object_type type;  /* ACPI_TYPE_INTEGER */
                 acpi_integer value;     /* The actual number */
         } integer;
 
         struct {
-                acpi_object_type type;
+                acpi_object_type type;  /* ACPI_TYPE_STRING */
                 u32 length;     /* # of bytes in string, excluding trailing null */
                 char *pointer;  /* points to the string value */
         } string;
 
         struct {
-                acpi_object_type type;
+                acpi_object_type type;  /* ACPI_TYPE_BUFFER */
                 u32 length;     /* # of bytes in buffer */
                 u8 *pointer;    /* points to the buffer */
         } buffer;
 
         struct {
-                acpi_object_type type;
-                u32 fill1;
-                acpi_handle handle;     /* object reference */
-        } reference;
-
-        struct {
-                acpi_object_type type;
+                acpi_object_type type;  /* ACPI_TYPE_PACKAGE */
                 u32 count;      /* # of elements in package */
                 union acpi_object *elements;    /* Pointer to an array of ACPI_OBJECTs */
         } package;
 
         struct {
-                acpi_object_type type;
+                acpi_object_type type;  /* ACPI_TYPE_LOCAL_REFERENCE */
+                acpi_object_type actual_type;   /* Type associated with the Handle */
+                acpi_handle handle;     /* object reference */
+        } reference;
+
+        struct {
+                acpi_object_type type;  /* ACPI_TYPE_PROCESSOR */
                 u32 proc_id;
                 acpi_io_address pblk_address;
                 u32 pblk_length;
         } processor;
 
         struct {
-                acpi_object_type type;
+                acpi_object_type type;  /* ACPI_TYPE_POWER */
                 u32 system_level;
                 u32 resource_order;
         } power_resource;