xtensa: fix build with KASAN

The commit 917538e ("kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage") removed KASAN_SHADOW_SCALE_SHIFT definition from include/linux/kasan.h and added it to architecture-specific headers, except for xtensa. This broke the xtensa build with KASAN enabled. Define KASAN_SHADOW_SCALE_SHIFT in arch/xtensa/include/asm/kasan.h Reported by: kbuild test robot <[email protected]> Fixes: 917538e ("kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage") Acked-by: Andrey Konovalov <[email protected]> Signed-off-by: Max Filippov <[email protected]>
ambv · Feb 11, 2018 · f8d0cbf · f8d0cbf
1 parent d48fcbd
commit f8d0cbf
Showing 1 changed file with 2 additions and 0 deletions.
diff --git 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 */