Consolidate MIN and MAX macros

Consolidate MIN and MAX macros and make sure it can be used in
combination with glib.

Reviewed-by: Philipp Rudo <prudo@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Acked-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>

include/lib/util_base.h

@@ -14,6 +14,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include "zt_common.h"
 
 void util_hexdump(FILE *fh, const char *tag, const void *data, int cnt);
 void util_hexdump_grp(FILE *fh, const char *tag, const void *data, int group,
@@ -22,22 +23,6 @@ void util_print_indented(const char *str, int indent);
 
 #define UTIL_ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
 
-#define MIN(x, y)		\
-({				\
-	__typeof__(x) _x = (x);	\
-	__typeof__(y) _y = (y);	\
-				\
-	_x < _y ? _x : _y;	\
-})
-
-#define MAX(x, y)		\
-({				\
-	__typeof__(x) _x = (x);	\
-	__typeof__(y) _y = (y);	\
-				\
-	_x > _y ? _x : _y;	\
-})
-
 static inline void util_ptr_vec_free(void **ptr_vec, int count)
 {
 	int i;

include/lib/zt_common.h

@@ -67,6 +67,23 @@
 
 #define barrier() __asm__ __volatile__("": : :"memory")
 
+#undef MIN
+#define MIN(x, y)				\
+	({					\
+		__typeof__(x) _x = (x);		\
+		__typeof__(y) _y = (y);		\
+						\
+		_x < _y ? _x : _y;		\
+	})
+
+#undef MAX
+#define MAX(x, y)				\
+	({					\
+		__typeof__(x) _x = (x);		\
+		__typeof__(y) _y = (y);		\
+						\
+		_x > _y ? _x : _y;		\
+	})
 
 typedef unsigned long long	u64;
 typedef signed long long	s64;

zipl/boot/s390.h

@@ -15,7 +15,6 @@
 #include "libc.h"
 #include "boot/sigp.h"
 
-#define MIN(x, y) ((x) < (y) ? (x) : (y))
 
 /*
  * Helper macro for exception table entries