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s390/cio: ccw_device_force_console don't use static variable

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force_console is used to wake up the CCW based console device to
print a panic message in case something goes wrong in a suspend
or resume cycle. Stop using the static console_subchannel and add
a parameter to this function to specify which ccw device we have
to wake up.

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 12:56:51 +02:00 committed by Martin Schwidefsky
parent 188561a462
commit f10ccca7a5
4 changed files with 5 additions and 7 deletions
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2
arch/s390/include/asm/ccwdev.h
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@ -221,7 +221,7 @@ extern void ccw_device_get_id(struct ccw_device *, struct ccw_dev_id *);
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);
extern int ccw_device_force_console(struct ccw_device *);
int ccw_device_siosl(struct ccw_device *);

2
drivers/s390/char/con3215.c
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@ -858,7 +858,7 @@ static void con3215_flush(void)
raw = raw3215[0]; /* console 3215 is the first one */
if (raw->port.flags & ASYNC_SUSPENDED)
/* The console is still frozen for suspend. */
if (ccw_device_force_console())
if (ccw_device_force_console(raw->cdev))
/* Forcing didn't work, no panic message .. */
return;
spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);

2
drivers/s390/char/raw3270.c
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@ -1274,7 +1274,7 @@ void raw3270_pm_unfreeze(struct raw3270_view *view)
rp = view->dev;
if (rp && test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
ccw_device_force_console();
ccw_device_force_console(rp->cdev);
#endif
}

6
drivers/s390/cio/device.c
View File

@ -1680,11 +1680,9 @@ void ccw_device_wait_idle(struct ccw_device *cdev)
static int ccw_device_pm_restore(struct device *dev);
int ccw_device_force_console(void)
int ccw_device_force_console(struct ccw_device *cdev)
{
if (!console_cdev_in_use)
return -ENODEV;
return ccw_device_pm_restore(&console_cdev.dev);
return ccw_device_pm_restore(&cdev->dev);
}
EXPORT_SYMBOL_GPL(ccw_device_force_console);
#endif