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 xtensa, we don't support large pages, so add a stub returning 0.
CC: Chris Zankel <chris@xxxxxxxxxx>
CC: Max Filippov <jcmvbkbc@xxxxxxxxx>
CC: linux-xtensa@xxxxxxxxxxxxxxxx
Signed-off-by: Steven Price <steven.price@xxxxxxx>
---
arch/xtensa/include/asm/pgtable.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/xtensa/include/asm/pgtable.h b/arch/xtensa/include/asm/pgtable.h
index 29cfe421cf41..60c3e86b9782 100644
--- a/arch/xtensa/include/asm/pgtable.h
+++ b/arch/xtensa/include/asm/pgtable.h
@@ -266,6 +266,7 @@ static inline void pgtable_cache_init(void) { }
#define pmd_none(pmd) (!pmd_val(pmd))
#define pmd_present(pmd) (pmd_val(pmd) & PAGE_MASK)
#define pmd_bad(pmd) (pmd_val(pmd) & ~PAGE_MASK)
+#define pmd_large(pmd) (0)
#define pmd_clear(pmdp) do { set_pmd(pmdp, __pmd(0)); } while (0)
static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_WRITABLE; }
--
2.20.1
