acpi_initialize_tables(struct acpi_table_desc *initial_storage,
u32 initial_table_count, u8 allow_resize);
-acpi_status acpi_initialize_subsystem(void);
+acpi_status __init acpi_initialize_subsystem(void);
acpi_status acpi_enable_subsystem(u32 flags);
void *context, void **return_value);
acpi_status
-acpi_get_devices(char *HID,
+acpi_get_devices(const char *HID,
acpi_walk_callback user_function,
void *context, void **return_value);