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s390/cio: wait_cons_dev don't use static variable

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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>
This commit is contained in:
Sebastian Ott
2013-04-13 12:53:21 +02:00
committed by Martin Schwidefsky
parent 91c15a9510
commit 188561a462
7 changed files with 32 additions and 25 deletions
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4
drivers/s390/char/raw3270.c
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@@ -796,7 +796,7 @@ struct raw3270 __init *raw3270_setup_console(struct ccw_device *cdev)
do {
__raw3270_reset_device(rp);
while (!raw3270_state_final(rp)) {
wait_cons_dev();
ccw_device_wait_idle(rp->cdev);
barrier();
}
} while (rp->state != RAW3270_STATE_READY);
@@ -810,7 +810,7 @@ raw3270_wait_cons_dev(struct raw3270 *rp)
unsigned long flags;
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
wait_cons_dev();
ccw_device_wait_idle(rp->cdev);
spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
}