1 files changed, 3 insertions, 1 deletions

diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index ad77c613c743..f3b29fa5654e 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -713,8 +713,10 @@ typedef u8 acpi_adr_space_type;
 #define ACPI_ADR_SPACE_PCI_BAR_TARGET   (acpi_adr_space_type) 6
 #define ACPI_ADR_SPACE_IPMI             (acpi_adr_space_type) 7
 
+#define ACPI_NUM_PREDEFINED_REGIONS     8
+
 /*
- * Special region types
+ * Special Address Spaces
  *
  * Note: A Data Table region is a special type of operation region
  * that has its own AML opcode. However, internally, the AML