From 9c284c91b08e9a669e9e9657814be9ff49310fa2 Mon Sep 17 00:00:00 2001
From: Shivank Garg <shivankg@amd.com>
Date: Sun, 18 Jan 2026 19:23:01 +0000
Subject: [PATCH] mm/khugepaged: make khugepaged_collapse_control static

The global variable 'khugepaged_collapse_control' is not used outside of
mm/khugepaged.c.  Make it static to limit its scope.

Link: https://lkml.kernel.org/r/20260118192253.9263-14-shivankg@amd.com
Signed-off-by: Shivank Garg <shivankg@amd.com>
Reviewed-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Acked-by: David Hildenbrand (Red Hat) <david@kernel.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Dev Jain <dev.jain@arm.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Nico Pache <npache@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 mm/khugepaged.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index c0a29a85230a0..3ba6dcea5993f 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -827,7 +827,7 @@ static void khugepaged_alloc_sleep(void)
 	remove_wait_queue(&khugepaged_wait, &wait);
 }
 
-struct collapse_control khugepaged_collapse_control = {
+static struct collapse_control khugepaged_collapse_control = {
 	.is_khugepaged = true,
 };
 
-- 
2.47.3