On Mon, Nov 28, 2022 at 12:01:06PM +0530, Anshuman Khandual wrote: > >> diff --git a/include/linux/mm.h b/include/linux/mm.h > >> index e9e387caffac..5ead9e997510 100644 > >> --- a/include/linux/mm.h > >> +++ b/include/linux/mm.h > >> @@ -2403,7 +2403,7 @@ static inline void pgtable_pte_page_dtor(struct page *page) > >> > >> #if USE_SPLIT_PMD_PTLOCKS > >> > >> -static struct page *pmd_pgtable_page(pmd_t *pmd) > >> +static inline struct page *pmd_pgtable_page(pmd_t *pmd) > >> { > >> unsigned long mask = ~(PTRS_PER_PMD * sizeof(pmd_t) - 1); > >> return virt_to_page((void *)((unsigned long) pmd & mask)); > > > > This chunk does not appear to belong to this patch. > > Should not this helper be made a 'static inline' before using it else where ? Probably yes, but it is not kvm s390-specific change. I guess, you wanted to make it together or as a follow-up to this one? https://lore.kernel.org/all/20221124131641.1523772-1-anshuman.khandual@xxxxxxx/