ACPICA: Simplify internal operation region interface

Changed address parameter to a simple offset. This removes the
need for the caller to access the region object to obtain the
physical address.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 11 insertions, 9 deletions

diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index 99cee61e655d..d4075b821021 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -222,7 +222,7 @@ acpi_ex_access_region(union acpi_operand_object *obj_desc,
 {
         acpi_status status;
         union acpi_operand_object *rgn_desc;
-        acpi_physical_address address;
+        u32 region_offset;
 
         ACPI_FUNCTION_TRACE(ex_access_region);
 
@@ -243,7 +243,7 @@ acpi_ex_access_region(union acpi_operand_object *obj_desc,
          * 3) The current offset into the field
          */
         rgn_desc = obj_desc->common_field.region_obj;
-        address = rgn_desc->region.address +
+        region_offset =
             obj_desc->common_field.base_byte_offset + field_datum_byte_offset;
 
         if ((function & ACPI_IO_MASK) == ACPI_READ) {
@@ -260,16 +260,18 @@ acpi_ex_access_region(union acpi_operand_object *obj_desc,
                               obj_desc->common_field.access_byte_width,
                               obj_desc->common_field.base_byte_offset,
                               field_datum_byte_offset, ACPI_CAST_PTR(void,
-                                                                     address)));
+                                                                     (rgn_desc->
+                                                                      region.
+                                                                      address +
+                                                                      region_offset))));
 
         /* Invoke the appropriate address_space/op_region handler */
 
-        status = acpi_ev_address_space_dispatch(rgn_desc, function,
-                                                address,
-                                                ACPI_MUL_8(obj_desc->
-                                                           common_field.
-                                                           access_byte_width),
-                                                value);
+        status =
+            acpi_ev_address_space_dispatch(rgn_desc, function, region_offset,
+                                           ACPI_MUL_8(obj_desc->common_field.
+                                                      access_byte_width),
+                                           value);
 
         if (ACPI_FAILURE(status)) {
                 if (status == AE_NOT_IMPLEMENTED) {