# \[PATCH v2 19/69\] mm/mm\_init: Make \_\_init\_page\_from\_nid() static

- From: Muchun Song \<hidden\>
- Date: 2026-05-13 13:09:18 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2026/05/9003595
- Thread: https://ratatoskr.run/linux-mm/2026/05/9003574/t.md

```text
__init_page_from_nid() no longer has external users and is only used
locally in mm/mm_init.c under CONFIG_DEFERRED_STRUCT_PAGE_INIT.

Make it static and keep it inside that block.

Signed-off-by: Muchun Song <redacted>
---
 mm/internal.h | 1 -
 mm/mm_init.c  | 4 ++--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/mm/internal.h b/mm/internal.h
index 6bd9aa37b952..4a5053368078 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -1754,7 +1754,6 @@ static inline bool pte_needs_soft_dirty_wp(struct vm_area_struct *vma, pte_t pte
 
 void __meminit __init_single_page(struct page *page, unsigned long pfn,
 				unsigned long zone, int nid);
-void __meminit __init_page_from_nid(unsigned long pfn, int nid);
 
 /* shrinker related functions */
 unsigned long shrink_slab(gfp_t gfp_mask, int nid, struct mem_cgroup *memcg,
diff --git a/mm/mm_init.c b/mm/mm_init.c
index 165b83c9a9c3..c64e5d63c4ae 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -688,10 +688,11 @@ static __meminit void pageblock_migratetype_init_range(unsigned long pfn,
 }
 #endif
 
+#ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT
 /*
  * Initialize a reserved page unconditionally, finding its zone first.
  */
-void __meminit __init_page_from_nid(unsigned long pfn, int nid)
+static void __meminit __init_page_from_nid(unsigned long pfn, int nid)
 {
 	pg_data_t *pgdat;
 	int zid;
@@ -713,7 +714,6 @@ void __meminit __init_page_from_nid(unsigned long pfn, int nid)
 	}
 }
 
-#ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT
 static inline void pgdat_set_deferred_range(pg_data_t *pgdat)
 {
 	pgdat->first_deferred_pfn = ULONG_MAX;
-- 
2.54.0


```