Merge tag 'mm-hotfixes-stable-2026-01-15-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:

 - kerneldoc fixes from Bagas Sanjaya

 - DAMON fixes from SeongJae

 - mremap VMA-related fixes from Lorenzo

 - various singletons - please see the changelogs for details

* tag 'mm-hotfixes-stable-2026-01-15-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (30 commits)
  drivers/dax: add some missing kerneldoc comment fields for struct dev_dax
  mm: numa,memblock: include <asm/numa.h> for 'numa_nodes_parsed'
  mailmap: add entry for Daniel Thompson
  tools/testing/selftests: fix gup_longterm for unknown fs
  mm/page_alloc: prevent pcp corruption with SMP=n
  iommu/sva: include mmu_notifier.h header
  mm: kmsan: fix poisoning of high-order non-compound pages
  tools/testing/selftests: add forked (un)/faulted VMA merge tests
  mm/vma: enforce VMA fork limit on unfaulted,faulted mremap merge too
  tools/testing/selftests: add tests for !tgt, src mremap() merges
  mm/vma: fix anon_vma UAF on mremap() faulted, unfaulted merge
  mm/zswap: fix error pointer free in zswap_cpu_comp_prepare()
  mm/damon/sysfs-scheme: cleanup access_pattern subdirs on scheme dir setup failure
  mm/damon/sysfs-scheme: cleanup quotas subdirs on scheme dir setup failure
  mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure
  mm/damon/sysfs: cleanup intervals subdirs on attrs dir setup failure
  mm/damon/core: remove call_control in inactive contexts
  powerpc/watchdog: add support for hardlockup_sys_info sysctl
  mips: fix HIGHMEM initialization
  mm/hugetlb: ignore hugepage kernel args if hugepages are unsupported
  ...

4 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/kfence.h b/include/linux/kfence.h
index 0ad1ddbb8b99..e5822f6e7f27 100644
--- a/include/linux/kfence.h
+++ b/include/linux/kfence.h
@@ -211,6 +211,7 @@ struct kmem_obj_info;
  * __kfence_obj_info() - fill kmem_obj_info struct
  * @kpp: kmem_obj_info to be filled
  * @object: the object
+ * @slab: the slab
  *
  * Return:
  * * false - not a KFENCE object
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index cf3c6ab408aa..207156f2143c 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -83,6 +83,7 @@ static inline void reset_hung_task_detector(void) { }
 #if defined(CONFIG_HARDLOCKUP_DETECTOR)
 extern void hardlockup_detector_disable(void);
 extern unsigned int hardlockup_panic;
+extern unsigned long hardlockup_si_mask;
 #else
 static inline void hardlockup_detector_disable(void) {}
 #endif
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index 0e1d73955fa5..95d0040df584 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -325,6 +325,7 @@ static inline void might_alloc(gfp_t gfp_mask)
 
 /**
  * memalloc_flags_save - Add a PF_* flag to current->flags, save old value
+ * @flags: Flags to add.
  *
  * This allows PF_* flags to be conveniently added, irrespective of current
  * value, and then the old version restored with memalloc_flags_restore().
diff --git a/include/linux/textsearch.h b/include/linux/textsearch.h
index 6673e4d4ac2e..4933777404d6 100644
--- a/include/linux/textsearch.h
+++ b/include/linux/textsearch.h
@@ -35,6 +35,7 @@ struct ts_state
  * @get_pattern: return head of pattern
  * @get_pattern_len: return length of pattern
  * @owner: module reference to algorithm
+ * @list: list to search
  */
 struct ts_ops
 {