From 2193260fd4c2173239dab9b7e7ebebdb95e180cc Mon Sep 17 00:00:00 2001
From: "David Hildenbrand (Arm)" <david@kernel.org>
Date: Mon, 21 Sep 2026 21:58:57 +0200
Subject: [PATCH] mm/sparse: cleanup sparse_init_one_section()

Let's avoid the "pnum" terminology.

Link: https://lore.kernel.org/20260921-b4-sparsemem_cleanups-v2-5-54d81d65e125@kernel.org
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Kairui Song <kasong@tencent.com>
Cc: Qi Zheng <qi.zheng@linux.dev>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Barry Song <baohua@kernel.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Cc: Wei Xu <weixugc@google.com>
Cc: Baoquan He <baoquan.he@linux.dev>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Brendan Jackman <brendan.jackman@linux.dev>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Danilo Krummrich <dakr@kernel.org>
---
 mm/sparse.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/sparse.h b/mm/sparse.h
index 530692cdd516..4ee507c34b98 100644
--- a/mm/sparse.h
+++ b/mm/sparse.h
@@ -20,7 +20,7 @@ void sparse_sections_init(void);
 int sparse_index_init(unsigned long section_nr, int nid);
 
 static inline void sparse_init_one_section(struct mem_section *ms,
-		unsigned long pnum, struct page *mem_map,
+		unsigned long section_nr, struct page *mem_map,
 		struct mem_section_usage *usage, unsigned long flags)
 {
 	unsigned long coded_mem_map;
@@ -32,7 +32,7 @@ static inline void sparse_init_one_section(struct mem_section *ms,
 	 * page_to_pfn() on !CONFIG_SPARSEMEM_VMEMMAP can simply subtract it
 	 * from the page pointer to obtain the PFN.
 	 */
-	coded_mem_map = (unsigned long)(mem_map - section_nr_to_pfn(pnum));
+	coded_mem_map = (unsigned long)(mem_map - section_nr_to_pfn(section_nr));
 	VM_WARN_ON_ONCE(coded_mem_map & ~SECTION_MAP_MASK);
 
 	ms->section_mem_map &= ~SECTION_MAP_MASK;