diff --git a/mm/internal.h b/mm/internal.h
index dccd4727de46..09efb9f4d126 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -1435,7 +1435,6 @@ extern unsigned long  __must_check vm_mmap_pgoff(struct file *, unsigned long,
         unsigned long, unsigned long,
         unsigned long, unsigned long);
 
-extern void set_pageblock_order(void);
 unsigned long reclaim_pages(struct list_head *folio_list);
 unsigned int reclaim_clean_pages_from_list(struct zone *zone,
 					    struct list_head *folio_list);
diff --git a/mm/mm_init.c b/mm/mm_init.c
index 7cfe7301a107..6f9b02ad4f2c 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -1496,7 +1496,7 @@ static inline void setup_usemap(struct zone *zone) {}
 #ifdef CONFIG_HUGETLB_PAGE_SIZE_VARIABLE
 
 /* Initialise the number of pages represented by NR_PAGEBLOCK_BITS */
-void __init set_pageblock_order(void)
+static void __init set_pageblock_order(void)
 {
 	unsigned int order = PAGE_BLOCK_MAX_ORDER;
 
@@ -1522,7 +1522,7 @@ void __init set_pageblock_order(void)
  * include/linux/pageblock-flags.h for the values of pageblock_order based on
  * the kernel config
  */
-void __init set_pageblock_order(void)
+static inline void __init set_pageblock_order(void)
 {
 }
 
diff --git a/mm/sparse.c b/mm/sparse.c
index 85557ef387c7..324213d8bdcb 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -343,9 +343,6 @@ void __init sparse_init(void)
 	pnum_begin = first_present_section_nr();
 	nid_begin = sparse_early_nid(__nr_to_section(pnum_begin));
 
-	/* Setup pageblock_order for HUGETLB_PAGE_SIZE_VARIABLE */
-	set_pageblock_order();
-
 	for_each_present_section_nr(pnum_begin + 1, pnum_end) {
 		int nid = sparse_early_nid(__nr_to_section(pnum_end));