[S390] cio: Introduce abstract isc definitions.

Replace the numeric values for I/O interruption subclass usage
with abstract definitions and collect them all in asm/isc.h.
This gives us a better overview of which iscs are actually used
and makes it possible to better spread out isc usage in the
future.

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

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 215d27dba9e2..67e7a3123954 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -22,6 +22,7 @@
 #include <asm/cio.h>
 #include <asm/param.h>          /* HZ */
 #include <asm/cmb.h>
+#include <asm/isc.h>
 
 #include "chp.h"
 #include "cio.h"
@@ -1121,7 +1122,7 @@ static void io_subchannel_init_fields(struct subchannel *sch)
         else
                 sch->opm = chp_get_sch_opm(sch);
         sch->lpm = sch->schib.pmcw.pam & sch->opm;
-        sch->isc = cio_is_console(sch->schid) ? 1 : 3;
+        sch->isc = cio_is_console(sch->schid) ? CONSOLE_ISC : IO_SCH_ISC;
 
         CIO_MSG_EVENT(6, "Detected device %04x on subchannel 0.%x.%04X"
                       " - PIM = %02X, PAM = %02X, POM = %02X\n",