[S390] add types.h include to s390_ext.h

The header file for external interrupts uses the _u16 type. Make sure
that _u16 is defined by including linux/types.h. This prevents compile
failures, if asm/s390_ext.h is the first include file.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/asm-s390/s390_ext.h b/include/asm-s390/s390_ext.h
index df9b1017b703..1e72362cad78 100644
--- a/include/asm-s390/s390_ext.h
+++ b/include/asm-s390/s390_ext.h
@@ -10,6 +10,8 @@
  *               Martin Schwidefsky (schwidefsky@de.ibm.com)
  */
 
+#include <linux/types.h>
+
 typedef void (*ext_int_handler_t)(__u16 code);
 
 /*