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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/[email protected]
Signed-off-by: Andrey Konovalov <[email protected]>
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Cc: Alexander Potapenko <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Cc: Marco Elver <[email protected]>
Cc: Max Filippov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
This commit is contained in:
Andrey Konovalov
2023-12-29 11:58:43 -08:00
committed by Andrew Morton
parent a3c5cc5129
commit 51fb591edc
1 changed files with 2 additions and 0 deletions
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arch/xtensa/include/asm/kasan.h
+2
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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)