ACPICA: Resource Manager: update template walking with ACPI_NEXT_RESO…

…URCE. Cleanup the ACPI_NEXT_RESOURCE macro. Update AcpiWalkResources to use ACPI_NEXT_RESOURCE. Lv Zheng. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
git-mirror · Jan 10, 2013 · fb4e502 · fb4e502
1 parent 57bf6ae
commit fb4e502
Show file tree

Hide file tree

Showing 2 changed files with 5 additions and 4 deletions.
diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
@@ -606,9 +606,7 @@ acpi_walk_resources(acpi_handle device_handle,
 
 		/* Get the next resource descriptor */
 
-		resource =
-		    ACPI_ADD_PTR(struct acpi_resource, resource,
-				 resource->length);
+		resource = ACPI_NEXT_RESOURCE(resource);
 	}
 
 	ACPI_FREE(buffer.pointer);

diff --git a/include/acpi/acrestyp.h b/include/acpi/acrestyp.h
@@ -591,7 +591,10 @@ struct acpi_resource {
 #define ACPI_RS_SIZE_MIN                    (u32) ACPI_ROUND_UP_TO_NATIVE_WORD (12)
 #define ACPI_RS_SIZE(type)                  (u32) (ACPI_RS_SIZE_NO_DATA + sizeof (type))
 
-#define ACPI_NEXT_RESOURCE(res)             (struct acpi_resource *)((u8 *) res + res->length)
+/* Macro for walking resource templates with multiple descriptors */
+
+#define ACPI_NEXT_RESOURCE(res) \
+	ACPI_ADD_PTR (struct acpi_resource, (res), (res)->length)
 
 struct acpi_pci_routing_table {
 	u32 length;