From fead6dcff83b02f8d6dc3c1ebbe4e09c05c54ee5 Mon Sep 17 00:00:00 2001 From: "David Hildenbrand (Arm)" Date: Fri, 20 Mar 2026 23:13:43 +0100 Subject: mm: prepare to move subsection_map_init() to mm/sparse-vmemmap.c We want to move subsection_map_init() to mm/sparse-vmemmap.c. To prepare for getting rid of subsection_map_init() in mm/sparse.c completely, use a static inline function for !CONFIG_SPARSEMEM_VMEMMAP. While at it, move the declaration to internal.h and rename it to "sparse_init_subsection_map()". Link: https://lkml.kernel.org/r/20260320-sparsemem_cleanups-v2-11-096addc8800d@kernel.org Signed-off-by: David Hildenbrand (Arm) Reviewed-by: Lorenzo Stoakes (Oracle) Reviewed-by: Mike Rapoport (Microsoft) Cc: Axel Rasmussen Cc: Liam Howlett Cc: Michal Hocko Cc: Oscar Salvador Cc: Sidhartha Kumar Cc: Suren Baghdasaryan Cc: Vlastimil Babka Cc: Wei Xu Cc: Yuanchu Xie Signed-off-by: Andrew Morton --- mm/sparse.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'mm/sparse.c') diff --git a/mm/sparse.c b/mm/sparse.c index e2048b1fbf5f..c96ac5e70c22 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -185,7 +185,7 @@ static void subsection_mask_set(unsigned long *map, unsigned long pfn, bitmap_set(map, idx, end - idx + 1); } -void __init subsection_map_init(unsigned long pfn, unsigned long nr_pages) +void __init sparse_init_subsection_map(unsigned long pfn, unsigned long nr_pages) { int end_sec_nr = pfn_to_section_nr(pfn + nr_pages - 1); unsigned long nr, start_sec_nr = pfn_to_section_nr(pfn); @@ -207,10 +207,6 @@ void __init subsection_map_init(unsigned long pfn, unsigned long nr_pages) nr_pages -= pfns; } } -#else -void __init subsection_map_init(unsigned long pfn, unsigned long nr_pages) -{ -} #endif /* Record a memory area against a node. */ -- cgit v1.2.3