On Tue, 18 Oct 2022 23:45:39 +0800 kernel test robot <lkp@xxxxxxxxx> wrote: > tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > branch HEAD: 4ca786ae6681b90b0ec3f4c55c89d12f835f8944 Add linux-next specific files for 20221018 > > ... > > mm/mmap.c:802 __vma_adjust() error: uninitialized symbol 'next_next'. > The code's OK but I guess we should make this warning go away. --- a/mm/mmap.c~a +++ a/mm/mmap.c @@ -618,7 +618,8 @@ int __vma_adjust(struct vm_area_struct * struct vm_area_struct *expand) { struct mm_struct *mm = vma->vm_mm; - struct vm_area_struct *next_next, *next = find_vma(mm, vma->vm_end); + struct vm_area_struct *next_next = NULL; /* uninit var warning */ + struct vm_area_struct *next = find_vma(mm, vma->vm_end); struct vm_area_struct *orig_vma = vma; struct address_space *mapping = NULL; struct rb_root_cached *root = NULL; _