+ mm-thp-drop-follow_devmap_pmd-default-stub.patch added to mm-new branch

+ mm-thp-drop-follow_devmap_pmd-default-stub.patch added to mm-new branch

[Andrew Morton]

The patch titled
     Subject: mm/thp: drop follow_devmap_pmd() default stub
has been added to the -mm mm-new branch.  Its filename is
     mm-thp-drop-follow_devmap_pmd-default-stub.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-thp-drop-follow_devmap_pmd-default-stub.patch

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

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

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   a) Consider who else should be cc'ed
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

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branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Anshuman Khandual <anshuman.khandual@arm.com>
Subject: mm/thp: drop follow_devmap_pmd() default stub
Date: Mon, 29 Sep 2025 11:46:43 +0100

follow_devmap_pmd() has already been dropped by the commit fd2825b0760a
("mm/gup: remove pXX_devmap usage from get_user_pages()"). The fallback
stub in the header which is now redundant, can be dropped off as well.

Link: https://lkml.kernel.org/r/20250929104643.1100421-1-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Dev Jain <dev.jain@arm.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/huge_mm.h |    6 ------
 1 file changed, 6 deletions(-)

--- a/include/linux/huge_mm.h~mm-thp-drop-follow_devmap_pmd-default-stub
+++ a/include/linux/huge_mm.h
@@ -691,12 +691,6 @@ static inline void mm_put_huge_zero_foli
 	return;
 }
 
-static inline struct page *follow_devmap_pmd(struct vm_area_struct *vma,
-	unsigned long addr, pmd_t *pmd, int flags, struct dev_pagemap **pgmap)
-{
-	return NULL;
-}
-
 static inline bool thp_migration_supported(void)
 {
 	return false;
_

Patches currently in -mm which might be from anshuman.khandual@arm.com are

documentation-mm-drop-pxx_mkdevmap-descriptions-from-page-table-helpers.patch
mm-thp-drop-follow_devmap_pmd-default-stub.patch