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xtensa, kasan: define KASAN_SHADOW_END

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Common KASAN code might rely on the definitions of the shadow mapping
start, end, and size.  Define KASAN_SHADOW_END in addition to
KASAN_SHADOW_START and KASAN_SHADOW_SIZE.

Link: https://lkml.kernel.org/r/20231225151924.5422-1-andrey.konovalov@linux.dev
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202312240755.MqsWuTno-lkp@intel.com/
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Andrey Konovalov 2023-12-25 16:19:24 +01:00 committed by Andrew Morton
parent a3c5cc5129
commit 51fb591edc
1 changed files with 2 additions and 0 deletions
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2
arch/xtensa/include/asm/kasan.h
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@ -18,6 +18,8 @@
#define KASAN_SHADOW_START (XCHAL_PAGE_TABLE_VADDR + XCHAL_PAGE_TABLE_SIZE)
/* Size of the shadow map */
#define KASAN_SHADOW_SIZE (-KASAN_START_VADDR >> KASAN_SHADOW_SCALE_SHIFT)
/* End of the shadow map */
#define KASAN_SHADOW_END (KASAN_SHADOW_START + KASAN_SHADOW_SIZE)
/* Offset for mem to shadow address transformation */
#define KASAN_SHADOW_OFFSET __XTENSA_UL_CONST(CONFIG_KASAN_SHADOW_OFFSET)