[to-be-updated] mm-hugetlb_cma-fix-incorrect-hugetlb_cma_size-assignment-on-malformed-input.patch removed from -mm tree

[Andrew Morton <akpm@linux-foundation.org>]

The quilt patch titled
     Subject: mm/hugetlb_cma: fix incorrect hugetlb_cma_size assignment on malformed input
has been removed from the -mm tree.  Its filename was
     mm-hugetlb_cma-fix-incorrect-hugetlb_cma_size-assignment-on-malformed-input.patch

This patch was dropped because an updated version will be issued

------------------------------------------------------
From: Kaitao Cheng <chengkaitao@kylinos.cn>
Subject: mm/hugetlb_cma: fix incorrect hugetlb_cma_size assignment on malformed input
Date: Wed, 28 Oct 2026 19:33:17 +0800

When hugetlb_cma contains a global size after node-specific entries,
cmdline_parse_hugetlb_cma() enters the global branch and reparses the
original parameter string.  For hugetlb_cma=1:2G,4G, this interprets the
initial node ID as a one-byte global size and clears the 2 GiB reservation
recorded for node 1.

Global and node-specific formats cannot be mixed.  Return -EINVAL when a
global entry follows a node-specific entry, before updating any settings. 
This preserves the valid prefix, so the example retains node 1's 2 GiB
reservation and reports the malformed option.

Link: https://lore.kernel.org/20261028113319.38544-2-kaitao.cheng@linux.dev
Fixes: 38e719ab2673 ("hugetlb: support node specified when using cma for gigantic hugepages")
Signed-off-by: Kaitao Cheng <chengkaitao@kylinos.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Closes: https://sashiko.dev/#/bug/linux-10f40d3e-3feb-4622-9da8-1fedecb2d0e2
Acked-by: Muchun Song <muchun.song@linux.dev>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: David Hildenbrand <david@kernel.org>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Frank van der Linden <fvdl@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: Chris Down <chris@chrisdown.name>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
---

 mm/hugetlb_cma.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/mm/hugetlb_cma.c~mm-hugetlb_cma-fix-incorrect-hugetlb_cma_size-assignment-on-malformed-input
+++ a/mm/hugetlb_cma.c
@@ -167,6 +167,9 @@ static int __init cmdline_parse_hugetlb_
 		} else {
 			char *next;
 
+			if (s != p)
+				return -EINVAL;
+
 			tmp = memparse(p, &next);
 			if (*next == '%') {
 				if (tmp > 100) {
_

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