mm/mm_init: remove redundant memset in free_area_init()

zone_movable_pfn is zero-initialized and only set by find_zone_movable_pfns_for_nodes(), which runs once during boot right after the memset, so the memset has no effect.

Remove redundant memset. No functional change.

---
 mm/mm_init.c | 1 -
 1 file changed, 1 deletion(-)

index 711f821f7b3c..144bb4042942 100644
@@ -1844,7 +1844,6 @@ static void __init free_area_init(void)
 	}
 
 	/* Find the PFNs that ZONE_MOVABLE begins at in each node */
-	memset(zone_movable_pfn, 0, sizeof(zone_movable_pfn));
 	find_zone_movable_pfns_for_nodes();
 
 	/* Print out the zone ranges */

2.43.0

Applied to misc branch of memblock.git tree, thanks!

[1/1] mm/mm_init: remove redundant memset in free_area_init()

      commit: d7bfd98ba01d2af48cc238d5525201c83fdef251

tree: https://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
branch: misc

--
Sincerely yours,
Mike.