Subject: [PATCH 6.1.y v2] Revert "selftests: mm: fix map_hugetlb failure on 64K page size systems"

From: Leon Hwang <[email-masked]>
Date: Thu, 23 Oct 2025 09:47:32 +0800

This reverts commit a584c7734a4dd050451fcdd65c66317e15660e81 to avoid
the build error:

map_hugetlb.c: In function 'main':
map_hugetlb.c:79:25: warning: implicit declaration of function 'default_huge_page_size' [-Wimplicit-function-declaration]
79 |         hugepage_size = default_huge_page_size();

Signed-off-by: Leon Hwang <[email-masked]>
---
v1 -> v2:
  - Revert the commit instead of fixing the build error.
  - https://lore.kernel.org/linux-mm/[email-masked]/

 tools/testing/selftests/vm/map_hugetlb.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/tools/testing/selftests/vm/map_hugetlb.c b/tools/testing/selftests/vm/map_hugetlb.c
index c65c55b7a789..312889edb84a 100644
--- a/tools/testing/selftests/vm/map_hugetlb.c
+++ b/tools/testing/selftests/vm/map_hugetlb.c
@@ -15,7 +15,6 @@
 #include <unistd.h>
 #include <sys/mman.h>
 #include <fcntl.h>
-#include "vm_util.h"

 #define LENGTH (256UL*1024*1024)
 #define PROTECTION (PROT_READ | PROT_WRITE)
@@ -71,16 +70,10 @@ int main(int argc, char **argv)
 {
 	void *addr;
 	int ret;
-	size_t hugepage_size;
 	size_t length = LENGTH;
 	int flags = FLAGS;
 	int shift = 0;

-	hugepage_size = default_huge_page_size();
-	/* munmap with fail if the length is not page aligned */
-	if (hugepage_size > length)
-		length = hugepage_size;
-
 	if (argc > 1)
 		length = atol(argv[1]) << 20;
 	if (argc > 2) {
--
2.51.0