+ mm-hugetlb-use-sizeofbuf-in-string_get_size-calls.patch added to mm-unstable branch

+ mm-hugetlb-use-sizeofbuf-in-string_get_size-calls.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm/hugetlb: use sizeof(buf) in string_get_size() calls
has been added to the -mm mm-unstable branch.  Its filename is
     mm-hugetlb-use-sizeofbuf-in-string_get_size-calls.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-hugetlb-use-sizeofbuf-in-string_get_size-calls.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Enze Li <lienze@kylinos.cn>
Subject: mm/hugetlb: use sizeof(buf) in string_get_size() calls
Date: Wed, 14 Oct 2026 11:11:47 +0800

Replace the hardcoded 32 with sizeof(buf) at the remaining four call
sites, for consistency with the rest of the file.

Link: https://lore.kernel.org/20261014031147.444733-1-lienze@kylinos.cn
Signed-off-by: Enze Li <lienze@kylinos.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Muchun Song <muchun.song@linux.dev>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: David Hildenbrand <david@kernel.org>
---

 mm/hugetlb.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/mm/hugetlb.c~mm-hugetlb-use-sizeofbuf-in-string_get_size-calls
+++ a/mm/hugetlb.c
@@ -3466,7 +3466,7 @@ static void __init hugetlb_hstate_alloc_
 	if (i == h->max_huge_pages_node[nid])
 		return;
 
-	string_get_size(huge_page_size(h), 1, STRING_UNITS_2, buf, 32);
+	string_get_size(huge_page_size(h), 1, STRING_UNITS_2, buf, sizeof(buf));
 	pr_warn("allocating %u of page size %s failed node%d.  Only allocated %lu hugepages.\n",
 		h->max_huge_pages_node[nid], buf, nid, i);
 	h->max_huge_pages -= (h->max_huge_pages_node[nid] - i);
@@ -3493,7 +3493,7 @@ static void __init hugetlb_hstate_alloc_
 	if (allocated < h->max_huge_pages) {
 		char buf[32];
 
-		string_get_size(huge_page_size(h), 1, STRING_UNITS_2, buf, 32);
+		string_get_size(huge_page_size(h), 1, STRING_UNITS_2, buf, sizeof(buf));
 		pr_warn("allocating %lu of page size %s failed.  Only allocated %lu hugepages.\n",
 			h->max_huge_pages, buf, allocated);
 		h->max_huge_pages = allocated;
@@ -3704,7 +3704,7 @@ static void __init report_hugepages(void
 	for_each_hstate(h) {
 		char buf[32];
 
-		string_get_size(huge_page_size(h), 1, STRING_UNITS_2, buf, 32);
+		string_get_size(huge_page_size(h), 1, STRING_UNITS_2, buf, sizeof(buf));
 		pr_info("registered %s page size, pre-allocated %ld pages\n",
 			buf, h->nr_huge_pages);
 		pr_info("%d KiB vmemmap can be freed for a %s page\n",
@@ -4216,7 +4216,7 @@ static int __init hugetlb_init(void)
 				char buf[32];
 
 				string_get_size(huge_page_size(&default_hstate),
-					1, STRING_UNITS_2, buf, 32);
+					1, STRING_UNITS_2, buf, sizeof(buf));
 				pr_warn("Ignoring hugepages=%lu associated with %s page size\n",
 					default_hstate.max_huge_pages, buf);
 				pr_warn("Using hugepages=%lu for number of default huge pages\n",
_

Patches currently in -mm which might be from lienze@kylinos.cn are

maintainers-cover-all-hugetlb-headers-under-hugetlb-subsystem.patch
mm-hugetlb_cgroup-add-trailing-endif-comment-for-include-guard.patch
docs-hugetlbpagerst-fix-typo-in-per-node-attribute-description.patch
mm-hugetlb-prefix-log-messages-via-pr_fmt.patch
mm-hugetlb-move-hugetlb_sysfs_initialized-into-hugetlb_register_all_nodes.patch
mm-hugetlb-use-sizeofbuf-in-string_get_size-calls.patch