diff --git a/arch/xtensa/include/asm/kasan.h b/arch/xtensa/include/asm/kasan.h
index 54be80876e57847725a5faa229b12774a0bb7e6d..216b6f32c37596c2b6368a24dfc906fcd9959d73 100644
--- a/arch/xtensa/include/asm/kasan.h
+++ b/arch/xtensa/include/asm/kasan.h
@@ -10,6 +10,8 @@
 #include <linux/sizes.h>
 #include <asm/kmem_layout.h>
 
+#define KASAN_SHADOW_SCALE_SHIFT 3
+
 /* Start of area covered by KASAN */
 #define KASAN_START_VADDR __XTENSA_UL_CONST(0x90000000)
 /* Start of the shadow map */