mm: sparse: consistently use _nr

Consistently name the return variable with an _nr suffix, whenever calling
pfn_to_section_nr(), to avoid confusion with a (struct mem_section *).

Link: https://lkml.kernel.org/r/20240531124144.240399-1-dev.jain@arm.comSigned-off-by: Dev Jain <dev.jain@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/sparse.c

@@ -192,13 +192,13 @@ static void subsection_mask_set(unsigned long *map, unsigned long pfn,
 
 void __init subsection_map_init(unsigned long pfn, unsigned long nr_pages)
 {
-	int end_sec = pfn_to_section_nr(pfn + nr_pages - 1);
-	unsigned long nr, start_sec = pfn_to_section_nr(pfn);
+	int end_sec_nr = pfn_to_section_nr(pfn + nr_pages - 1);
+	unsigned long nr, start_sec_nr = pfn_to_section_nr(pfn);
 
 	if (!nr_pages)
 		return;
 
-	for (nr = start_sec; nr <= end_sec; nr++) {
+	for (nr = start_sec_nr; nr <= end_sec_nr; nr++) {
 		struct mem_section *ms;
 		unsigned long pfns;
 
@@ -229,17 +229,17 @@ static void __init memory_present(int nid, unsigned long start, unsigned long en
 	start &= PAGE_SECTION_MASK;
 	mminit_validate_memmodel_limits(&start, &end);
 	for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION) {
-		unsigned long section = pfn_to_section_nr(pfn);
+		unsigned long section_nr = pfn_to_section_nr(pfn);
 		struct mem_section *ms;
 
-		sparse_index_init(section, nid);
-		set_section_nid(section, nid);
+		sparse_index_init(section_nr, nid);
+		set_section_nid(section_nr, nid);
 
-		ms = __nr_to_section(section);
+		ms = __nr_to_section(section_nr);
 		if (!ms->section_mem_map) {
 			ms->section_mem_map = sparse_encode_early_nid(nid) |
 							SECTION_IS_ONLINE;
-			__section_mark_present(ms, section);
+			__section_mark_present(ms, section_nr);
 		}
 	}
 }