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x86/kasan: Define KASAN_SHADOW_OFFSET per architecture

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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@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Alexey Klimov <klimov.linux@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Keitel <dkeitel@codeaurora.org>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yury <yury.norov@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/1439444244-26057-2-git-send-email-ryabinin.a.a@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Andrey Ryabinin 2015-08-13 08:37:23 +03:00 committed by Ingo Molnar
parent e525293d97
commit 920e277e17
2 changed files with 3 additions and 1 deletions
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3
arch/x86/include/asm/kasan.h
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@ -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

1
include/linux/kasan.h
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@ -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>