The patch titled Subject: mm: export copy_to_kernel_nofault has been added to the -mm mm-unstable branch. Its filename is kasan-migrate-copy_user_test-to-kunit-fix.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/kasan-migrate-copy_user_test-to-kunit-fix.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Arnd Bergmann <arnd@xxxxxxxx> Subject: mm: export copy_to_kernel_nofault Date: Fri, 18 Oct 2024 15:11:09 +0000 This symbol is now used on the kasan test module, so it needs to be exported. ERROR: modpost: "copy_to_kernel_nofault" [mm/kasan/kasan_test.ko] undefined! Link: https://lkml.kernel.org/r/20241018151112.3533820-1-arnd@xxxxxxxxxx Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Acked-by: David Hildenbrand <david@xxxxxxxxxx> Reviewed-by: Andrey Konovalov <andreyknvl@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/maccess.c | 1 + 1 file changed, 1 insertion(+) --- a/mm/maccess.c~kasan-migrate-copy_user_test-to-kunit-fix +++ a/mm/maccess.c @@ -82,6 +82,7 @@ Efault: pagefault_enable(); return -EFAULT; } +EXPORT_SYMBOL_GPL(copy_to_kernel_nofault); long strncpy_from_kernel_nofault(char *dst, const void *unsafe_addr, long count) { _ Patches currently in -mm which might be from arnd@xxxxxxxx are bootmem-add-bootmem_type-stub-function-fix-2.patch kasan-migrate-copy_user_test-to-kunit-fix.patch