diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 89fcae0..0b61671 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -16,7 +16,9 @@
 #define LLONG_MAX	((long long)(~0ULL>>1))
 #define LLONG_MIN	(-LLONG_MAX - 1)
 #define ULLONG_MAX	(~0ULL)
+#ifndef SIZE_MAX
 #define SIZE_MAX	(~(size_t)0)
+#endif
 
 #define U8_MAX		((u8)~0U)
 #define S8_MAX		((s8)(U8_MAX>>1))