kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage

Right now the fact that KASAN uses a single shadow byte for 8 bytes of
memory is scattered all over the code.

This change defines KASAN_SHADOW_SCALE_SHIFT early in asm include files
and makes use of this constant where necessary.

[akpm@linux-foundation.org: coding-style fixes]
Link: http://lkml.kernel.org/r/34937ca3b90736eaad91b568edf5684091f662e3.1515775666.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrey Konovalov
2018-02-06 15:36:44 -08:00
committed by Linus Torvalds
parent 5f21f3a8f4
commit 917538e212
5 changed files with 22 additions and 15 deletions

View File

@@ -11,8 +11,6 @@ struct task_struct;
#ifdef CONFIG_KASAN
#define KASAN_SHADOW_SCALE_SHIFT 3
#include <asm/kasan.h>
#include <asm/pgtable.h>