1 files changed, 1 insertions, 1 deletions

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);    \