diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 78821a28e394b1a3b02538684f227fcd4d2705e5..1fa93bd2bb9feeeeefe520466beecbdba3cf74c6 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3450,6 +3450,7 @@ int __init add_from_early_node_map(struct range *range, int az,
 	return nr_range;
 }
 
+#ifdef CONFIG_NO_BOOTMEM
 void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
 					u64 goal, u64 limit)
 {
@@ -3486,6 +3487,7 @@ void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
 
 	return NULL;
 }
+#endif
 
 
 void __init work_with_active_regions(int nid, work_fn_t work_fn, void *data)