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    SubjectRe: [PATCH v3 2/2] mm: remove odd HAVE_PTE_SPECIAL
    On Wed 11-04-18 10:03:36, Laurent Dufour wrote:
    > @@ -881,7 +876,8 @@ struct page *_vm_normal_page(struct vm_area_struct *vma, unsigned long addr,
    >
    > if (is_zero_pfn(pfn))
    > return NULL;
    > -check_pfn:
    > +
    > +check_pfn: __maybe_unused
    > if (unlikely(pfn > highest_memmap_pfn)) {
    > print_bad_pte(vma, addr, pte, NULL);
    > return NULL;
    > @@ -891,7 +887,7 @@ struct page *_vm_normal_page(struct vm_area_struct *vma, unsigned long addr,
    > * NOTE! We still have PageReserved() pages in the page tables.
    > * eg. VDSO mappings can cause them to exist.
    > */
    > -out:
    > +out: __maybe_unused
    > return pfn_to_page(pfn);

    Why do we need this ugliness all of the sudden?

    --
    Michal Hocko
    SUSE Labs

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