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issue here, for some reason I seemed to have vm_flags_reset() available from the VMA tests when I tested but err, that doesn't seem to be the case at all. Again I realise this is in mm-stable so this might be fiddly so we might have to live with minor bisect pain :( Cheers, Lorenzo ----8<---- >From afe5af105e7d64e39a4280c7fc8b34ad67cf0db0 Mon Sep 17 00:00:00 2001 From: Lorenzo Stoakes Date: Fri, 21 Nov 2025 17:25:18 +0000 Subject: [PATCH] tools/testing/vma: add missing stub The vm_flags_reset() function is not available in the userland VMA tests, so add a stub which const-casts vma->vm_flags and avoids the upcoming removal of the vma->__vm_flags field. Signed-off-by: Lorenzo Stoakes --- tools/testing/vma/vma_internal.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/tools/testing/vma/vma_internal.h b/tools/testing/vma/vma_internal.h index 37fd479d49ce..f90a9b3c1880 100644 --- a/tools/testing/vma/vma_internal.h +++ b/tools/testing/vma/vma_internal.h @@ -1760,4 +1760,11 @@ static inline int do_munmap(struct mm_struct *, unsigned long, size_t, return 0; } +static inline void vm_flags_reset(struct vm_area_struct *vma, vm_flags_t flags) +{ + vm_flags_t *dst = (vm_flags_t *)(&vma->vm_flags); + + *dst = flags; +} + #endif /* __MM_VMA_INTERNAL_H */ -- 2.51.2