[PATCH 1/4] powerpc/mm: make vmemmap_populate_compound_pages() static

[Muchun Song]

vmemmap_populate_compound_pages() is no longer used outside
radix_pgtable.c.

Make it static and drop the unused dev_pagemap argument from
its only remaining caller to simplify the code.

Signed-off-by: Muchun Song <songmuchun at bytedance.com>
Acked-by: Qi Zheng <qi.zheng at linux.dev>
---
 arch/powerpc/include/asm/book3s/64/radix.h |  6 ------
 arch/powerpc/mm/book3s64/radix_pgtable.c   | 13 +++++++------
 2 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/arch/powerpc/include/asm/book3s/64/radix.h b/arch/powerpc/include/asm/book3s/64/radix.h
index da954e779744..8452a2714cb1 100644
--- a/arch/powerpc/include/asm/book3s/64/radix.h
+++ b/arch/powerpc/include/asm/book3s/64/radix.h
@@ -356,11 +356,5 @@ int radix__remove_section_mapping(unsigned long start, unsigned long end);
 #define vmemmap_can_optimize vmemmap_can_optimize
 bool vmemmap_can_optimize(struct vmem_altmap *altmap, struct dev_pagemap *pgmap);
 #endif
-
-#define vmemmap_populate_compound_pages vmemmap_populate_compound_pages
-int __meminit vmemmap_populate_compound_pages(unsigned long start_pfn,
-					      unsigned long start,
-					      unsigned long end, int node,
-					      struct dev_pagemap *pgmap);
 #endif /* __ASSEMBLER__ */
 #endif
diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c
index ebac5f9058f6..2924604fbb38 100644
--- a/arch/powerpc/mm/book3s64/radix_pgtable.c
+++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
@@ -1117,7 +1117,9 @@ static inline pte_t *vmemmap_pte_alloc(pmd_t *pmdp, int node,
 	return pte_offset_kernel(pmdp, address);
 }
 
-
+static int __meminit vmemmap_populate_compound_pages(unsigned long start_pfn,
+						     unsigned long start,
+						     unsigned long end, int node);
 
 int __meminit radix__vmemmap_populate(unsigned long start, unsigned long end, int node,
 				      struct vmem_altmap *altmap)
@@ -1132,7 +1134,7 @@ int __meminit radix__vmemmap_populate(unsigned long start, unsigned long end, in
 	unsigned long pfn = page_to_pfn((struct page *)start);
 
 	if (vmemmap_optimizable_order(pfn_to_section_compound_order(pfn)))
-		return vmemmap_populate_compound_pages(pfn, start, end, node, NULL);
+		return vmemmap_populate_compound_pages(pfn, start, end, node);
 	/*
 	 * If altmap is present, Make sure we align the start vmemmap addr
 	 * to PAGE_SIZE so that we calculate the correct start_pfn in
@@ -1228,10 +1230,9 @@ int __meminit radix__vmemmap_populate(unsigned long start, unsigned long end, in
 	return 0;
 }
 
-int __meminit vmemmap_populate_compound_pages(unsigned long start_pfn,
-					      unsigned long start,
-					      unsigned long end, int node,
-					      struct dev_pagemap *pgmap)
+static int __meminit vmemmap_populate_compound_pages(unsigned long start_pfn,
+						     unsigned long start,
+						     unsigned long end, int node)
 {
 	/*
 	 * we want to map things as base page size mapping so that
-- 
2.54.0