3 files changed, 14 insertions, 4 deletions
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index 912563c66948..043fd559de6e 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -288,6 +288,11 @@
 #define ACPI_INLINE
 #endif
 
+/* Use ordered initialization if compiler doesn't support designated. */
+#ifndef ACPI_STRUCT_INIT
+#define ACPI_STRUCT_INIT(field, value)  value
+#endif
+
 /*
  * Configurable calling conventions:
  *
@@ -382,8 +387,4 @@
 #define ACPI_INIT_FUNCTION
 #endif
 
-#ifndef ACPI_STRUCT_INIT
-#define ACPI_STRUCT_INIT(field, value) value
-#endif
-
 #endif				/* __ACENV_H__ */
diff --git a/include/acpi/platform/acgcc.h b/include/acpi/platform/acgcc.h
index 97a7e21cfbe0..9c8f8b79644e 100644
--- a/include/acpi/platform/acgcc.h
+++ b/include/acpi/platform/acgcc.h
@@ -84,4 +84,8 @@ typedef __builtin_va_list va_list;
 
 #define COMPILER_VA_MACRO               1
 
+/* GCC supports native multiply/shift on 32-bit platforms */
+
+#define ACPI_USE_NATIVE_MATH64
+
 #endif				/* __ACGCC_H__ */
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 047f13865608..1b473efd9eb6 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -128,6 +128,7 @@
 /* Host-dependent types and defines for in-kernel ACPICA */
 
 #define ACPI_MACHINE_WIDTH          BITS_PER_LONG
+#define ACPI_USE_NATIVE_MATH64
 #define ACPI_EXPORT_SYMBOL(symbol)  EXPORT_SYMBOL(symbol);
 #define strtoul                     simple_strtoul
 
@@ -178,6 +179,9 @@
 #define ACPI_MSG_BIOS_ERROR     KERN_ERR "ACPI BIOS Error (bug): "
 #define ACPI_MSG_BIOS_WARNING   KERN_WARNING "ACPI BIOS Warning (bug): "
 
+/*
+ * Linux wants to use designated initializers for function pointer structs.
+ */
 #define ACPI_STRUCT_INIT(field, value)	.field = value
 
 #else				/* !__KERNEL__ */
@@ -213,6 +217,7 @@
 #define COMPILER_DEPENDENT_INT64    long long
 #define COMPILER_DEPENDENT_UINT64   unsigned long long
 #define ACPI_USE_NATIVE_DIVIDE
+#define ACPI_USE_NATIVE_MATH64
 #endif
 
 #ifndef __cdecl