Re: [PATCH v6 02/18] kasan: Unpoison vms[area] addresses with a common tag

void __kasan_unpoison_vmap_areas(struct vm_struct **vms, int nr_vms) { int area;

    for (area = 0 ; area < nr_vms ; area++) {
            kasan_poison(vms[area]->addr, vms[area]->size,

•                        arch_kasan_get_tag(vms[area]->addr), false);
  

•                        arch_kasan_get_tag(vms[0]->addr), false);
  

•           arch_kasan_set_tag(vms[area]->addr, arch_kasan_get_tag(vms[0]->addr));
  

Like set_tag(), arch_kasan_set_tag() does not set the tag value in place, so this line is a no-op.