1 files changed, 1 insertions, 0 deletions

diff --git a/arch/s390/include/asm/isc.h b/arch/s390/include/asm/isc.h
index 34bb8916db4f..1420a1115948 100644
--- a/arch/s390/include/asm/isc.h
+++ b/arch/s390/include/asm/isc.h
@@ -17,6 +17,7 @@
 #define CHSC_SCH_ISC 7                  /* CHSC subchannels */
 /* Adapter interrupts. */
 #define QDIO_AIRQ_ISC IO_SCH_ISC        /* I/O subchannel in qdio mode */
+#define AP_ISC 6                        /* adjunct processor (crypto) devices */
 
 /* Functions for registration of I/O interruption subclasses */
 void isc_register(unsigned int isc);