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authorPeter Oberparleiter <oberpar@linux.ibm.com>2021-06-09 17:17:23 +0200
committerVasily Gorbik <gor@linux.ibm.com>2021-06-18 16:41:20 +0200
commit21adcf11f62db0347bb95740d02bcf2867ed5e01 (patch)
treec0c73cdfe3284dd9f9c5adeeafbb78f98f933c55 /drivers/s390
parent8e1eaf4d834a6f51ece2a9ac9ebdf1854ec482e9 (diff)
s390/monwriter: Remove power management support
Power management support was removed for s390 with commit 394216275c7d ("s390: remove broken hibernate / power management support"). Remove leftover monwriter-related power management code. Acked-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/monwriter.c90
1 files changed, 1 insertions, 89 deletions
diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c
index fdc0c0b7a6f5..9cd1ea92d619 100644
--- a/drivers/s390/char/monwriter.c
+++ b/drivers/s390/char/monwriter.c
@@ -20,7 +20,6 @@
#include <linux/ctype.h>
#include <linux/poll.h>
#include <linux/mutex.h>
-#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <asm/ebcdic.h>
@@ -40,10 +39,7 @@ struct mon_buf {
char *data;
};
-static LIST_HEAD(mon_priv_list);
-
struct mon_private {
- struct list_head priv_list;
struct list_head list;
struct monwrite_hdr hdr;
size_t hdr_to_read;
@@ -199,7 +195,6 @@ static int monwrite_open(struct inode *inode, struct file *filp)
monpriv->hdr_to_read = sizeof(monpriv->hdr);
mutex_init(&monpriv->thread_mutex);
filp->private_data = monpriv;
- list_add_tail(&monpriv->priv_list, &mon_priv_list);
return nonseekable_open(inode, filp);
}
@@ -217,7 +212,6 @@ static int monwrite_close(struct inode *inode, struct file *filp)
kfree(entry->data);
kfree(entry);
}
- list_del(&monpriv->priv_list);
kfree(monpriv);
return 0;
}
@@ -294,105 +288,23 @@ static struct miscdevice mon_dev = {
};
/*
- * suspend/resume
- */
-
-static int monwriter_freeze(struct device *dev)
-{
- struct mon_private *monpriv;
- struct mon_buf *monbuf;
-
- list_for_each_entry(monpriv, &mon_priv_list, priv_list) {
- list_for_each_entry(monbuf, &monpriv->list, list) {
- if (monbuf->hdr.mon_function != MONWRITE_GEN_EVENT)
- monwrite_diag(&monbuf->hdr, monbuf->data,
- APPLDATA_STOP_REC);
- }
- }
- return 0;
-}
-
-static int monwriter_restore(struct device *dev)
-{
- struct mon_private *monpriv;
- struct mon_buf *monbuf;
-
- list_for_each_entry(monpriv, &mon_priv_list, priv_list) {
- list_for_each_entry(monbuf, &monpriv->list, list) {
- if (monbuf->hdr.mon_function == MONWRITE_START_INTERVAL)
- monwrite_diag(&monbuf->hdr, monbuf->data,
- APPLDATA_START_INTERVAL_REC);
- if (monbuf->hdr.mon_function == MONWRITE_START_CONFIG)
- monwrite_diag(&monbuf->hdr, monbuf->data,
- APPLDATA_START_CONFIG_REC);
- }
- }
- return 0;
-}
-
-static int monwriter_thaw(struct device *dev)
-{
- return monwriter_restore(dev);
-}
-
-static const struct dev_pm_ops monwriter_pm_ops = {
- .freeze = monwriter_freeze,
- .thaw = monwriter_thaw,
- .restore = monwriter_restore,
-};
-
-static struct platform_driver monwriter_pdrv = {
- .driver = {
- .name = "monwriter",
- .pm = &monwriter_pm_ops,
- },
-};
-
-static struct platform_device *monwriter_pdev;
-
-/*
* module init/exit
*/
static int __init mon_init(void)
{
- int rc;
-
if (!MACHINE_IS_VM)
return -ENODEV;
-
- rc = platform_driver_register(&monwriter_pdrv);
- if (rc)
- return rc;
-
- monwriter_pdev = platform_device_register_simple("monwriter", -1, NULL,
- 0);
- if (IS_ERR(monwriter_pdev)) {
- rc = PTR_ERR(monwriter_pdev);
- goto out_driver;
- }
-
/*
* misc_register() has to be the last action in module_init(), because
* file operations will be available right after this.
*/
- rc = misc_register(&mon_dev);
- if (rc)
- goto out_device;
- return 0;
-
-out_device:
- platform_device_unregister(monwriter_pdev);
-out_driver:
- platform_driver_unregister(&monwriter_pdrv);
- return rc;
+ return misc_register(&mon_dev);
}
static void __exit mon_exit(void)
{
misc_deregister(&mon_dev);
- platform_device_unregister(monwriter_pdev);
- platform_driver_unregister(&monwriter_pdrv);
}
module_init(mon_init);