[S390] bug: implement arch specific __WARN macro

This one will trap, generates shorter code and emits better debug data
than the generic version.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index efb74fd5156e..b1066b9fb5f8 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -52,6 +52,10 @@
         unreachable();                                  \
 } while (0)
 
+#define __WARN() do {                                   \
+        __EMIT_BUG(BUGFLAG_WARNING);                    \
+} while (0)
+
 #define WARN_ON(x) ({                                   \
         int __ret_warn_on = !!(x);                      \
         if (__builtin_constant_p(__ret_warn_on)) {      \