diff --git a/arch/x86/include/asm/e820/api.h b/arch/x86/include/asm/e820/api.h
index e8ad6d9c997484485b1f8e3e649d2e21ea0613fd..4895544b17abc0d0c3cb1b7eb905c8bf4f558f4e 100644
--- a/arch/x86/include/asm/e820/api.h
+++ b/arch/x86/include/asm/e820/api.h
@@ -30,12 +30,7 @@ extern void e820_reserve_resources_late(void);
 extern void setup_memory_map(void);
 extern char *default_machine_specific_memory_setup(void);
 extern void e820_reallocate_tables(void);
-
-#if defined(CONFIG_X86_64) || defined(CONFIG_X86_32) && defined(CONFIG_HIBERNATION)
 extern void e820_mark_nosave_regions(unsigned long limit_pfn);
-#else
-static inline void e820_mark_nosave_regions(unsigned long limit_pfn) { }
-#endif
 
 /*
  * Returns true iff the specified range [start,end) is completely contained inside
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index eeb9c9963a6b981c7945eb453c5f4c297bf415af..1f75b95185b8213fd062349590cbdf16cc458be1 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -696,8 +696,6 @@ void __init parse_e820_ext(u64 phys_addr, u32 data_len)
 	e820_print_map("extended");
 }
 
-#if defined(CONFIG_X86_64) || \
-	(defined(CONFIG_X86_32) && defined(CONFIG_HIBERNATION))
 /**
  * Find the ranges of physical addresses that do not correspond to
  * e820 RAM areas and mark the corresponding pages as nosave for
@@ -726,7 +724,6 @@ void __init e820_mark_nosave_regions(unsigned long limit_pfn)
 			break;
 	}
 }
-#endif
 
 #ifdef CONFIG_ACPI
 /**