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Message-Id: <1452518355-4606-4-git-send-email-ard.biesheuvel@linaro.org>
Date: Mon, 11 Jan 2016 14:18:56 +0100
From: Ard Biesheuvel <ard.biesheuvel@...aro.org>
To: linux-arm-kernel@...ts.infradead.org,
kernel-hardening@...ts.openwall.com,
will.deacon@....com,
catalin.marinas@....com,
mark.rutland@....com,
leif.lindholm@...aro.org,
keescook@...omium.org,
linux-kernel@...r.kernel.org
Cc: stuart.yoder@...escale.com,
bhupesh.sharma@...escale.com,
arnd@...db.de,
marc.zyngier@....com,
christoffer.dall@...aro.org,
Ard Biesheuvel <ard.biesheuvel@...aro.org>
Subject: [PATCH v3 03/21] arm64: pgtable: add dummy pud_index() and pmd_index() definitions
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@...aro.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
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