Hi all,
After merging the mm tree, today's linux-next build (x86_64 allnoconfig)
failed like this:
In file included from mm/mmap.c:50:
include/linux/memfd.h:27:5: warning: no previous prototype for 'memfd_check_seals_mmap' [-Wmissing-prototypes]
27 | int memfd_check_seals_mmap(struct file *file, unsigned long *vm_flags)
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from fs/fcntl.c:26:
include/linux/memfd.h:27:5: warning: no previous prototype for 'memfd_check_seals_mmap' [-Wmissing-prototypes]
27 | int memfd_check_seals_mmap(struct file *file, unsigned long *vm_flags)
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from mm/gup.c:8:
include/linux/memfd.h:27:5: warning: no previous prototype for 'memfd_check_seals_mmap' [-Wmissing-prototypes]
27 | int memfd_check_seals_mmap(struct file *file, unsigned long *vm_flags)
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from mm/secretmem.c:12:
include/linux/memfd.h:27:5: warning: no previous prototype for 'memfd_check_seals_mmap' [-Wmissing-prototypes]
27 | int memfd_check_seals_mmap(struct file *file, unsigned long *vm_flags)
| ^~~~~~~~~~~~~~~~~~~~~~
x86_64-linux-gnu-ld: mm/mmap.o: in function `memfd_check_seals_mmap':
mmap.c:(.text+0x200): multiple definition of `memfd_check_seals_mmap'; mm/gup.o:gup.c:(.text+0xf60): first defined here
x86_64-linux-gnu-ld: mm/secretmem.o: in function `memfd_check_seals_mmap':
secretmem.c:(.text+0x3c0): multiple definition of `memfd_check_seals_mmap'; mm/gup.o:gup.c:(.text+0xf60): first defined here
x86_64-linux-gnu-ld: fs/fcntl.o: in function `memfd_check_seals_mmap':
fcntl.c:(.text+0x270): multiple definition of `memfd_check_seals_mmap'; mm/gup.o:gup.c:(.text+0xf60): first defined here
Caused by commit
6b72648c4e2b ("mm: perform all memfd seal checks in a single place")
from the mm-unstable branch of the mm tree.
I have applied the following patch for today:
From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Mon, 9 Dec 2024 15:23:48 +1100
Subject: [PATCH] fix up for "mm: perform all memfd seal checks in a single place"
Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
include/linux/memfd.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/memfd.h b/include/linux/memfd.h
index d53408b0bd31..4397e3b4f0f9 100644
--- a/include/linux/memfd.h
+++ b/include/linux/memfd.h
@@ -24,7 +24,7 @@ static inline struct folio *memfd_alloc_folio(struct file *memfd, pgoff_t idx)
{
return ERR_PTR(-EINVAL);
}
-int memfd_check_seals_mmap(struct file *file, unsigned long *vm_flags)
+static inline int memfd_check_seals_mmap(struct file *file, unsigned long *vm_flags)
{
return 0;
}
--
2.45.2
--
Cheers,
Stephen Rothwell
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