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s390/vmur: remove unused pm related functions

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The Power-management related functions are unused since
'commit 394216275c ("s390: remove broken hibernate / power management
support")'. Remove them from the unit-record device driver.

Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Vineeth Vijayan 2020-09-28 21:29:01 +02:00 committed by Heiko Carstens
parent 2f6ea6fb88
commit 74cee7f3b0
1 changed files with 0 additions and 24 deletions
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24
drivers/s390/char/vmur.c
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@ -62,7 +62,6 @@ static int ur_probe(struct ccw_device *cdev);
static void ur_remove(struct ccw_device *cdev);
static int ur_set_online(struct ccw_device *cdev);
static int ur_set_offline(struct ccw_device *cdev);
static int ur_pm_suspend(struct ccw_device *cdev);
static struct ccw_driver ur_driver = {
.driver = {
@ -74,7 +73,6 @@ static struct ccw_driver ur_driver = {
.remove = ur_remove,
.set_online = ur_set_online,
.set_offline = ur_set_offline,
.freeze = ur_pm_suspend,
.int_class = IRQIO_VMR,
};
@ -164,28 +162,6 @@ static void urdev_put(struct urdev *urd)
urdev_free(urd);
}
/*
* State and contents of ur devices can be changed by class D users issuing
* CP commands such as PURGE or TRANSFER, while the Linux guest is suspended.
* Also the Linux guest might be logged off, which causes all active spool
* files to be closed.
* So we cannot guarantee that spool files are still the same when the Linux
* guest is resumed. In order to avoid unpredictable results at resume time
* we simply refuse to suspend if a ur device node is open.
*/
static int ur_pm_suspend(struct ccw_device *cdev)
{
struct urdev *urd = dev_get_drvdata(&cdev->dev);
TRACE("ur_pm_suspend: cdev=%p\n", cdev);
if (urd->open_flag) {
pr_err("Unit record device %s is busy, %s refusing to "
"suspend.\n", dev_name(&cdev->dev), ur_banner);
return -EBUSY;
}
return 0;
}
/*
* Low-level functions to do I/O to a ur device.
* alloc_chan_prog