diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 15bfb15c2fa5..cb4d7b6b085c 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -578,6 +578,7 @@ int acpi_match_platform_list(const struct acpi_platform_list *plat);
 
 extern void acpi_early_init(void);
 extern void acpi_subsystem_init(void);
+extern void arch_post_acpi_subsys_init(void);
 
 extern int acpi_nvs_register(__u64 start, __u64 size);