3 files changed, 51 insertions, 11 deletions

diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 508e5649dda9..c3f38bc459e1 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -53,8 +53,6 @@
 #include <acpi/actbl.h>
 #include <acpi/acbuffer.h>
 
-extern u8 acpi_gbl_permanent_mmap;
-
 /*****************************************************************************
  *
  * Macros used for ACPICA globals and configuration
@@ -889,17 +887,25 @@ ACPI_APP_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(1)
 /*
  * Divergences
  */
-acpi_status acpi_get_id(acpi_handle object, acpi_owner_id * out_type);
+ACPI_GLOBAL(u8, acpi_gbl_permanent_mmap);
+
+ACPI_EXTERNAL_RETURN_STATUS(acpi_status
+                            acpi_get_id(acpi_handle object,
+                                        acpi_owner_id * out_type))
 
-acpi_status acpi_unload_table_id(acpi_owner_id id);
+ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_unload_table_id(acpi_owner_id id))
 
-acpi_status
-acpi_get_table_with_size(acpi_string signature,
-               u32 instance, struct acpi_table_header **out_table,
-               acpi_size *tbl_size);
+ACPI_EXTERNAL_RETURN_STATUS(acpi_status
+                            acpi_get_table_with_size(acpi_string signature,
+                                                     u32 instance,
+                                                     struct acpi_table_header
+                                                     **out_table,
+                                                     acpi_size *tbl_size))
 
-acpi_status
-acpi_get_data_full(acpi_handle object, acpi_object_handler handler, void **data,
-                   void (*callback)(void *));
+ACPI_EXTERNAL_RETURN_STATUS(acpi_status
+                            acpi_get_data_full(acpi_handle object,
+                                               acpi_object_handler handler,
+                                               void **data,
+                                               void (*callback)(void *)))
 
 #endif                          /* __ACXFACE_H__ */
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index cd1f052d55bb..1ba7c190c2cc 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -44,6 +44,16 @@
 #ifndef __ACLINUX_H__
 #define __ACLINUX_H__
 
+#ifdef __KERNEL__
+
+/* ACPICA external files should not include ACPICA headers directly. */
+
+#if !defined(BUILDING_ACPICA) && !defined(_LINUX_ACPI_H)
+#error "Please don't include <acpi/acpi.h> directly, include <linux/acpi.h> instead."
+#endif
+
+#endif
+
 /* Common (in-kernel/user-space) ACPICA configuration */
 
 #define ACPI_USE_SYSTEM_CLIBRARY
@@ -70,7 +80,9 @@
 #ifdef EXPORT_ACPI_INTERFACES
 #include <linux/export.h>
 #endif
+#ifdef CONFIG_ACPI
 #include <asm/acenv.h>
+#endif
 
 #ifndef CONFIG_ACPI
 
diff --git a/include/acpi/platform/aclinuxex.h b/include/acpi/platform/aclinuxex.h
index 191e741cfa0e..568d4b886712 100644
--- a/include/acpi/platform/aclinuxex.h
+++ b/include/acpi/platform/aclinuxex.h
@@ -46,6 +46,28 @@
 
 #ifdef __KERNEL__
 
+#ifndef ACPI_USE_NATIVE_DIVIDE
+
+#ifndef ACPI_DIV_64_BY_32
+#define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
+        do { \
+                u64 (__n) = ((u64) n_hi) << 32 | (n_lo); \
+                (r32) = do_div ((__n), (d32)); \
+                (q32) = (u32) (__n); \
+        } while (0)
+#endif
+
+#ifndef ACPI_SHIFT_RIGHT_64
+#define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
+        do { \
+                (n_lo) >>= 1; \
+                (n_lo) |= (((n_hi) & 1) << 31); \
+                (n_hi) >>= 1; \
+        } while (0)
+#endif
+
+#endif
+
 /*
  * Overrides for in-kernel ACPICA
  */