From c6af91e48594191f62ad3c1fcc8269b1eb539ef8 Mon Sep 17 00:00:00 2001 From: Sang-Heon Jeon Date: Wed, 1 Jul 2026 00:04:12 +0900 Subject: [PATCH] mm: remove unnecessary empty range check in early_calculate_totalpages() early_calculate_totalpages() iterates the memory ranges with for_each_mem_pfn_range() and calls node_set_state(nid, N_MEMORY) only when end_pfn - start_pfn is non-zero. for_each_mem_pfn_range() never returns an empty range, so start_pfn < end_pfn always. Therefore the check is unnecessary, so remove it. No functional change. Signed-off-by: Sang-Heon Jeon Reviewed-by: Mike Rapoport (Microsoft) Link: https://patch.msgid.link/20260630150413.1718632-8-ekffu200098@gmail.com Signed-off-by: Mike Rapoport (Microsoft) --- mm/mm_init.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/mm_init.c b/mm/mm_init.c index 0f64909e8d20..17498a13eb99 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -332,8 +332,7 @@ static unsigned long __init early_calculate_totalpages(void) unsigned long pages = end_pfn - start_pfn; totalpages += pages; - if (pages) - node_set_state(nid, N_MEMORY); + node_set_state(nid, N_MEMORY); } return totalpages; }