Re: [PATCH 2/2] kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage

From: Will Deacon
Date: Thu Jan 11 2018 - 12:33:13 EST


On Thu, Jan 11, 2018 at 04:29:09PM +0100, Andrey Konovalov wrote:
> 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.
>
> Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
> ---
> arch/arm64/include/asm/kasan.h | 3 ++-
> arch/arm64/include/asm/memory.h | 3 ++-
> arch/arm64/mm/kasan_init.c | 3 ++-
> arch/x86/include/asm/kasan.h | 8 ++++++--
> include/linux/kasan.h | 2 --
> 5 files changed, 12 insertions(+), 7 deletions(-)

For the arm64 parts:

Acked-by: Will Deacon <will.deacon@xxxxxxx>

Will