diff --git a/include/asm-avr32/bug.h b/include/asm-avr32/bug.h
index afdcd79a2966..331d45bab18f 100644
--- a/include/asm-avr32/bug.h
+++ b/include/asm-avr32/bug.h
@@ -57,7 +57,7 @@
 
 #define WARN_ON(condition)							\
 	({								\
-		typeof(condition) __ret_warn_on = (condition);		\
+		int __ret_warn_on = !!(condition);			\
 		if (unlikely(__ret_warn_on))				\
 			_BUG_OR_WARN(BUGFLAG_WARNING);			\
 		unlikely(__ret_warn_on);				\
diff --git a/include/asm-parisc/bug.h b/include/asm-parisc/bug.h
index 83ba510ed5d8..8cfc553fc837 100644
--- a/include/asm-parisc/bug.h
+++ b/include/asm-parisc/bug.h
@@ -74,7 +74,7 @@
 
 
 #define WARN_ON(x) ({						\
-	typeof(x) __ret_warn_on = (x);				\
+	int __ret_warn_on = !!(x);				\
 	if (__builtin_constant_p(__ret_warn_on)) {		\
 		if (__ret_warn_on)				\
 			__WARN();				\
diff --git a/include/asm-s390/bug.h b/include/asm-s390/bug.h
index 838684dc6d35..384e3621e341 100644
--- a/include/asm-s390/bug.h
+++ b/include/asm-s390/bug.h
@@ -50,7 +50,7 @@
 #define BUG()	__EMIT_BUG(0)
 
 #define WARN_ON(x) ({					\
-	typeof(x) __ret_warn_on = (x);			\
+	int __ret_warn_on = !!(x);			\
 	if (__builtin_constant_p(__ret_warn_on)) {	\
 		if (__ret_warn_on)			\
 			__EMIT_BUG(BUGFLAG_WARNING);	\
diff --git a/include/asm-sh/bug.h b/include/asm-sh/bug.h
index 46f925c815ac..a78d482e8b2f 100644
--- a/include/asm-sh/bug.h
+++ b/include/asm-sh/bug.h
@@ -61,7 +61,7 @@ do {							\
 } while (0)
 
 #define WARN_ON(x) ({						\
-	typeof(x) __ret_warn_on = (x);				\
+	int __ret_warn_on = !!(x);				\
 	if (__builtin_constant_p(__ret_warn_on)) {		\
 		if (__ret_warn_on)				\
 			__WARN();				\