ACPICA: Add __init for ACPICA initializers/finalizers.

This patch adds __init to the ACPICA documented initializers:
  acpi_initialize_tables()
  acpi_initialize_subsystem()
  acpi_load_tables()
  acpi_enable_subsystem()
  acpi_initialize_objects()
and to acpi_reallocate_root_table(), acpi_find_root_pointer() which
are also meant to be called only during initialization.

This patch adds __init to the ACPICA documented finalizer:
  acpi_terminate()
as this finalizer is only called in __init function now.

This change helps to reduce source code differences between
ACPICA upstream and Linux.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

7 files changed, 15 insertions, 16 deletions

diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index 43ffe21c7b26..3d6bb83aa7e7 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -430,8 +430,7 @@ acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size)
  *
  ******************************************************************************/
 
-acpi_status __init
-acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
+acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
 {
         struct acpi_table_rsdp *rsdp;
         u32 table_entry_size;
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index 7e63090742dc..db826eaadd1c 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -164,7 +164,7 @@ ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_tables)
  *              kernel.
  *
  ******************************************************************************/
-acpi_status acpi_reallocate_root_table(void)
+acpi_status __init acpi_reallocate_root_table(void)
 {
         acpi_status status;
 
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index b1e1edd5703a..60b5a871833c 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -66,7 +66,7 @@ static acpi_status acpi_tb_load_namespace(void);
  *
  ******************************************************************************/
 
-acpi_status acpi_load_tables(void)
+acpi_status __init acpi_load_tables(void)
 {
         acpi_status status;
 
diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c
index 1c95fabbe6a4..e4e1468877c3 100644
--- a/drivers/acpi/acpica/tbxfroot.c
+++ b/drivers/acpi/acpica/tbxfroot.c
@@ -111,7 +111,7 @@ acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
  *
  ******************************************************************************/
 
-acpi_status acpi_find_root_pointer(acpi_size *table_address)
+acpi_status __init acpi_find_root_pointer(acpi_size *table_address)
 {
         u8 *table_ptr;
         u8 *mem_rover;
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 39869022a417..be322c83643a 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -61,7 +61,7 @@ ACPI_MODULE_NAME("utxface")
  * DESCRIPTION: Shutdown the ACPICA subsystem and release all resources.
  *
  ******************************************************************************/
-acpi_status acpi_terminate(void)
+acpi_status __init acpi_terminate(void)
 {
         acpi_status status;
 
diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c
index ff6f4d194136..75efea0539c1 100644
--- a/drivers/acpi/acpica/utxfinit.c
+++ b/drivers/acpi/acpica/utxfinit.c
@@ -65,7 +65,7 @@ ACPI_MODULE_NAME("utxfinit")
  *              called, so any early initialization belongs here.
  *
  ******************************************************************************/
-acpi_status acpi_initialize_subsystem(void)
+acpi_status __init acpi_initialize_subsystem(void)
 {
         acpi_status status;
 
@@ -140,7 +140,7 @@ ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_subsystem)
  *              Puts system into ACPI mode if it isn't already.
  *
  ******************************************************************************/
-acpi_status acpi_enable_subsystem(u32 flags)
+acpi_status __init acpi_enable_subsystem(u32 flags)
 {
         acpi_status status = AE_OK;
 
@@ -245,7 +245,7 @@ ACPI_EXPORT_SYMBOL_INIT(acpi_enable_subsystem)
  *              objects and executing AML code for Regions, buffers, etc.
  *
  ******************************************************************************/
-acpi_status acpi_initialize_objects(u32 flags)
+acpi_status __init acpi_initialize_objects(u32 flags)
 {
         acpi_status status = AE_OK;
 
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 00725f44ac89..d8f9457755b4 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -114,17 +114,17 @@ extern u8 acpi_gbl_disable_ssdt_table_load;
 /*
  * Initialization
  */
-acpi_status
+acpi_status __init
 acpi_initialize_tables(struct acpi_table_desc *initial_storage,
                        u32 initial_table_count, u8 allow_resize);
 
 acpi_status __init acpi_initialize_subsystem(void);
 
-acpi_status acpi_enable_subsystem(u32 flags);
+acpi_status __init acpi_enable_subsystem(u32 flags);
 
-acpi_status acpi_initialize_objects(u32 flags);
+acpi_status __init acpi_initialize_objects(u32 flags);
 
-acpi_status acpi_terminate(void);
+acpi_status __init acpi_terminate(void);
 
 /*
  * Miscellaneous global interfaces
@@ -168,14 +168,14 @@ acpi_status acpi_load_table(struct acpi_table_header *table);
 
 acpi_status acpi_unload_parent_table(acpi_handle object);
 
-acpi_status acpi_load_tables(void);
+acpi_status __init acpi_load_tables(void);
 
 /*
  * ACPI table manipulation interfaces
  */
-acpi_status acpi_reallocate_root_table(void);
+acpi_status __init acpi_reallocate_root_table(void);
 
-acpi_status acpi_find_root_pointer(acpi_size * rsdp_address);
+acpi_status __init acpi_find_root_pointer(acpi_size *rsdp_address);
 
 acpi_status acpi_unload_table_id(acpi_owner_id id);