walk_page_range() is going to be allowed to walk page tables other than those of user space. For this it needs to know when it has reached a 'leaf' entry in the page tables. This information is provided by the p?d_large() functions/macros.
For nds32, we don't support large pages, so add stubs returning 0. CC: Greentime Hu <[email protected]> CC: Vincent Chen <[email protected]> Signed-off-by: Steven Price <[email protected]> --- arch/nds32/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/nds32/include/asm/pgtable.h b/arch/nds32/include/asm/pgtable.h index 9f52db930c00..202ac93c0a6b 100644 --- a/arch/nds32/include/asm/pgtable.h +++ b/arch/nds32/include/asm/pgtable.h @@ -309,6 +309,7 @@ static inline pte_t pte_mkspecial(pte_t pte) #define pmd_none(pmd) (pmd_val(pmd)&0x1) #define pmd_present(pmd) (!pmd_none(pmd)) +#define pmd_large(pmd) (0) #define pmd_bad(pmd) pmd_none(pmd) #define copy_pmd(pmdpd,pmdps) set_pmd((pmdpd), *(pmdps)) @@ -349,6 +350,7 @@ static inline pmd_t __mk_pmd(pte_t * ptep, unsigned long prot) #define pgd_none(pgd) (0) #define pgd_bad(pgd) (0) #define pgd_present(pgd) (1) +#define pgd_large(pgd) (0) #define pgd_clear(pgdp) do { } while (0) #define page_pte_prot(page,prot) mk_pte(page, prot) -- 2.20.1
