[PATCH -next] mm/hugetlb_cgroup: fix -Wformat-truncation warning

[Xiu Jianfeng <xiujianfeng@huaweicloud.com>]

From: Xiu Jianfeng <xiujianfeng@huawei.com>

A false-positive compile warnings with -Wformat-trucation was introduced
by commit 47179fe03588 ("mm/hugetlb_cgroup: prepare cftypes based
on template") on arch s390. Suppress it by replacing snprintf() with
scnprintf().

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202512212332.9lFRbgdS-lkp@intel.com/
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
---
 mm/hugetlb_cgroup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index 58e895f3899a..7144d7d555eb 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -822,7 +822,7 @@ hugetlb_cgroup_cfttypes_init(struct hstate *h, struct cftype *cft,
 	for (i = 0; i < tmpl_size; cft++, tmpl++, i++) {
 		*cft = *tmpl;
 		/* rebuild the name */
-		snprintf(cft->name, MAX_CFTYPE_NAME, "%s.%s", buf, tmpl->name);
+		scnprintf(cft->name, MAX_CFTYPE_NAME, "%s.%s", buf, tmpl->name);
 		/* rebuild the private */
 		cft->private = MEMFILE_PRIVATE(idx, tmpl->private);
 		/* rebuild the file_offset */
-- 
2.43.0