diff --git a/arch/ia64/include/asm/acenv.h b/arch/ia64/include/asm/acenv.h
index e0896eb26bf1..3f9eaeec9873 100644
--- a/arch/ia64/include/asm/acenv.h
+++ b/arch/ia64/include/asm/acenv.h
@@ -17,23 +17,8 @@
 #define COMPILER_DEPENDENT_INT64	long
 #define COMPILER_DEPENDENT_UINT64	unsigned long
 
-/*
- * Calling conventions:
- *
- * ACPI_SYSTEM_XFACE        - Interfaces to host OS (handlers, threads)
- * ACPI_EXTERNAL_XFACE      - External ACPI interfaces
- * ACPI_INTERNAL_XFACE      - Internal ACPI interfaces
- * ACPI_INTERNAL_VAR_XFACE  - Internal variable-parameter list interfaces
- */
-#define ACPI_SYSTEM_XFACE
-#define ACPI_EXTERNAL_XFACE
-#define ACPI_INTERNAL_XFACE
-#define ACPI_INTERNAL_VAR_XFACE
-
 /* Asm macros */
 
-#define ACPI_FLUSH_CPU_CACHE()
-
 #ifdef CONFIG_ACPI
 
 static inline int
diff --git a/arch/x86/include/asm/acenv.h b/arch/x86/include/asm/acenv.h
index 6978584934f7..66873297e9f5 100644
--- a/arch/x86/include/asm/acenv.h
+++ b/arch/x86/include/asm/acenv.h
@@ -14,22 +14,6 @@
 
 #include <asm/special_insns.h>
 
-#define COMPILER_DEPENDENT_INT64   long long
-#define COMPILER_DEPENDENT_UINT64  unsigned long long
-
-/*
- * Calling conventions:
- *
- * ACPI_SYSTEM_XFACE        - Interfaces to host OS (handlers, threads)
- * ACPI_EXTERNAL_XFACE      - External ACPI interfaces
- * ACPI_INTERNAL_XFACE      - Internal ACPI interfaces
- * ACPI_INTERNAL_VAR_XFACE  - Internal variable-parameter list interfaces
- */
-#define ACPI_SYSTEM_XFACE
-#define ACPI_EXTERNAL_XFACE
-#define ACPI_INTERNAL_XFACE
-#define ACPI_INTERNAL_VAR_XFACE
-
 /* Asm macros */
 
 #define ACPI_FLUSH_CPU_CACHE()	wbinvd()
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 5d27e560a48e..e70012956db3 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -48,7 +48,6 @@
 
 #define ACPI_USE_SYSTEM_CLIBRARY
 #define ACPI_USE_DO_WHILE_0
-#define ACPI_MUTEX_TYPE             ACPI_BINARY_SEMAPHORE
 
 #ifdef __KERNEL__