s390/cio: wait_cons_dev don't use static variable
wait_cons_dev is used to busy wait for an interrupt on the console
ccw device. Stop using the static console_subchannel and add a
parameter to this function to specify on which ccw device/subchannel
we have to do the polling.
While at it rename the function to ccw_device_wait_idle and
move it to device.c
Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h
index e606161..cb56fb6 100644
--- a/arch/s390/include/asm/ccwdev.h
+++ b/arch/s390/include/asm/ccwdev.h
@@ -220,6 +220,7 @@
#define to_ccwdrv(n) container_of(n, struct ccw_driver, driver)
extern struct ccw_device *ccw_device_probe_console(void);
+extern void ccw_device_wait_idle(struct ccw_device *);
extern int ccw_device_force_console(void);
int ccw_device_siosl(struct ccw_device *);