linux-kernel - [PATCH 1/2] kasan, x86: move KASAN_SHADOW

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Date:	Tue, 24 Mar 2015 17:49:03 +0300
From:	Andrey Ryabinin <a.ryabinin@...sung.com>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Andrey Ryabinin <a.ryabinin@...sung.com>
Subject: [PATCH 1/2] kasan, x86: move KASAN_SHADOW_OFFSET to the arch Kconfig

KASAN_SHADOW_OFFSET is purely arch specific setting,
so it should be in arch's Kconfig file. This simplifies
porting KASan to other architectures and maintenance of it.

Signed-off-by: Andrey Ryabinin <a.ryabinin@...sung.com>
---
 arch/x86/Kconfig  | 4 ++++
 lib/Kconfig.kasan | 4 ----
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index cb23206..66ee917 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -247,6 +247,10 @@ config ARCH_SUPPORTS_OPTIMIZED_INLINING
 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 	def_bool y
 
+config KASAN_SHADOW_OFFSET
+	hex
+	default 0xdffffc0000000000
+
 config HAVE_INTEL_TXT
 	def_bool y
 	depends on INTEL_IOMMU && ACPI
diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan
index 4fecaedc..ba31b8c 100644
--- a/lib/Kconfig.kasan
+++ b/lib/Kconfig.kasan
@@ -15,10 +15,6 @@ config KASAN
 	  For better error detection enable CONFIG_STACKTRACE,
 	  and add slub_debug=U to boot cmdline.
 
-config KASAN_SHADOW_OFFSET
-	hex
-	default 0xdffffc0000000000 if X86_64
-
 choice
 	prompt "Instrumentation type"
 	depends on KASAN
-- 
2.3.3

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