[PATCH v5 1/6] x86/kasan: define KASAN_SHADOW_OFFSET per architecture

From: Andrey Ryabinin
Date: Mon Aug 10 2015 - 18:24:38 EST


Current definition of KASAN_SHADOW_OFFSET in include/linux/kasan.h
will not work for upcomming arm64, so move it to the arch header.

Signed-off-by: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>
---
arch/x86/include/asm/kasan.h | 3 +++
include/linux/kasan.h | 1 -
2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/kasan.h b/arch/x86/include/asm/kasan.h
index 74a2a8d..1410b56 100644
--- a/arch/x86/include/asm/kasan.h
+++ b/arch/x86/include/asm/kasan.h
@@ -1,6 +1,9 @@
#ifndef _ASM_X86_KASAN_H
#define _ASM_X86_KASAN_H

+#include <linux/const.h>
+#define KASAN_SHADOW_OFFSET _AC(CONFIG_KASAN_SHADOW_OFFSET, UL)
+
/*
* Compiler uses shadow offset assuming that addresses start
* from 0. Kernel addresses don't start from 0, so shadow
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 5486d77..6fb1c7d 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -10,7 +10,6 @@ struct vm_struct;
#ifdef CONFIG_KASAN

#define KASAN_SHADOW_SCALE_SHIFT 3
-#define KASAN_SHADOW_OFFSET _AC(CONFIG_KASAN_SHADOW_OFFSET, UL)

#include <asm/kasan.h>
#include <linux/sched.h>
--
2.4.6

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