+ mm-gup-handle-hugepd-for-follow_page-fix.patch added to mm-unstable branch

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The patch titled
     Subject: mm-gup-handle-hugepd-for-follow_page-fix
has been added to the -mm mm-unstable branch.  Its filename is
     mm-gup-handle-hugepd-for-follow_page-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-gup-handle-hugepd-for-follow_page-fix.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: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm-gup-handle-hugepd-for-follow_page-fix
Date: Fri Mar 22 01:41:43 PM PDT 2024

fix build warning

mm/gup.c:33:21: warning: 'follow_hugepd' declared 'static' but never defined [-Wunused-function]
   33 | static struct page *follow_hugepd(struct vm_area_struct *vma, hugepd_t hugepd,
      |                     ^~~~~~~~~~~~~

Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Andrew Jones <andrew.jones@xxxxxxxxx>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxx>
Cc: Axel Rasmussen <axelrasmussen@xxxxxxxxxx>
Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: James Houghton <jthoughton@xxxxxxxxxx>
Cc: Jason Gunthorpe <jgg@xxxxxxxxxx>
Cc: John Hubbard <jhubbard@xxxxxxxxxx>
Cc: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx>
Cc: Lorenzo Stoakes <lstoakes@xxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Mike Rapoport (IBM) <rppt@xxxxxxxxxx>
Cc: Muchun Song <muchun.song@xxxxxxxxx>
Cc: Peter Xu <peterx@xxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Yang Shi <shy828301@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/gup.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/mm/gup.c~mm-gup-handle-hugepd-for-follow_page-fix
+++ a/mm/gup.c
@@ -30,10 +30,12 @@ struct follow_page_context {
 	unsigned int page_mask;
 };
 
+#ifdef CONFIG_HAVE_FAST_GUP
 static struct page *follow_hugepd(struct vm_area_struct *vma, hugepd_t hugepd,
 				  unsigned long addr, unsigned int pdshift,
 				  unsigned int flags,
 				  struct follow_page_context *ctx);
+#endif
 
 static inline void sanity_check_pinned_pages(struct page **pages,
 					     unsigned long npages)
_

Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are

mm-sparc-change-pxd_huge-behavior-to-exclude-swap-entries-fix.patch
mm-gup-handle-hugepd-for-follow_page-fix.patch





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