[PATCH v3 03/21] arm64: pgtable: add dummy pud_index() and pmd_index() definitions

Ard Biesheuvel
2016-01-11T13:18:56Z

Add definitions of pud_index() and pmd_index() for configurations with
fewer than 4 resp. 3 translation levels. This makes it easier to keep
the users (e.g., the fixmap init code) generic.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
arch/arm64/include/asm/pgtable.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index fe9bf47db5d3..6129f6755081 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -495,6 +495,7 @@ static inline phys_addr_t pud_page_paddr(pud_t pud)
#else

#define pud_page_paddr(pud) ({ BUILD_BUG(); 0; })
+#define pmd_index(addr) ({ BUILD_BUG(); 0; })

/* Match pmd_offset folding in <asm/generic/pgtable-nopmd.h> */
#define pmd_set_fixmap(addr) NULL
@@ -542,6 +543,7 @@ static inline phys_addr_t pgd_page_paddr(pgd_t pgd)
#else

#define pgd_page_paddr(pgd) ({ BUILD_BUG(); 0;})
+#define pud_index(addr) ({ BUILD_BUG(); 0;})

/* Match pud_offset folding in <asm/generic/pgtable-nopud.h> */
#define pud_set_fixmap(addr) NULL
--
2.5.0