[PATCH 09/11] Don't need to map the shadow of KASan's shadow memory

From: Abbott Liu
Date: Wed Oct 11 2017 - 04:33:29 EST


Because the KASan's shadow memory don't need to track,so remove the
mapping code in kasan_init.

Cc: Andrey Ryabinin <a.ryabinin@xxxxxxxxxxx>
---
arch/arm/mm/kasan_init.c | 4 ----
1 file changed, 4 deletions(-)

diff --git a/arch/arm/mm/kasan_init.c b/arch/arm/mm/kasan_init.c
index 2bf0782..7cfdc39 100644
--- a/arch/arm/mm/kasan_init.c
+++ b/arch/arm/mm/kasan_init.c
@@ -218,10 +218,6 @@ void __init kasan_init(void)

clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END);

- kasan_populate_zero_shadow(
- kasan_mem_to_shadow((void *)KASAN_SHADOW_START),
- kasan_mem_to_shadow((void *)KASAN_SHADOW_END));
-
kasan_populate_zero_shadow(kasan_mem_to_shadow((void *)VMALLOC_START),
kasan_mem_to_shadow((void *)-1UL) + 1);

--
2.9.0