diff --git a/include/lib/zt_common.h b/include/lib/zt_common.h
index 716e7d16..00c5f9a4 100644
--- a/include/lib/zt_common.h
+++ b/include/lib/zt_common.h
@@ -55,6 +55,18 @@
 #define __may_alias __attribute__((may_alias))
 #define __section(x) __attribute__((__section__(#x)))
 #define __noinline __attribute__((__noinline__))
+/* The Linux kernel (in stddef.h) and glibc (sys/cdefs.h) define
+ * __always_inline. Therefore undefine it first to allow the headers
+ * to be included first.
+ */
+#undef __always_inline
+#define __always_inline inline __attribute__((always_inline))
+
+#define __pa32(x) ((uint32_t)(unsigned long)(x))
+#define __pa(x) ((unsigned long)(x))
+
+#define barrier() __asm__ __volatile__("": : :"memory")
+
 
 typedef unsigned long long	u64;
 typedef signed long long	s64;
diff --git a/zipl/boot/s390.h b/zipl/boot/s390.h
index c2cd936b..219be2fa 100644
--- a/zipl/boot/s390.h
+++ b/zipl/boot/s390.h
@@ -15,16 +15,7 @@
 #include "libc.h"
 #include "boot/sigp.h"
 
-#define __pa32(x) ((uint32_t)(unsigned long)(x))
-#define __pa(x) ((unsigned long)(x))
 #define MIN(x, y) ((x) < (y) ? (x) : (y))
-#define barrier() __asm__ __volatile__("": : :"memory")
-/* The Linux kernel (in stddef.h) and glibc (sys/cdefs.h) define
- * __always_inline. Therefore undefine it first to allow the headers
- * to be included first.
- */
-#undef __always_inline
-#define __always_inline inline __attribute__((always_inline))
 
 /*
  * Helper macro for exception table entries