s390/zfcp: remove pm support from zfcp driver

As part of removing the power management support from
s390 arch, remove PM callbacks from the scsi/zfcp driver.

Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Reviewed-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

1 files changed, 4 insertions, 53 deletions

diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index d9fd0a41da64..bdf2cc1ea713 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -194,23 +194,21 @@ static int zfcp_ccw_set_online(struct ccw_device *cdev)
 }
 
 /**
- * zfcp_ccw_offline_sync - shut down adapter and wait for it to finish
+ * zfcp_ccw_set_offline - set_offline function of zfcp driver
  * @cdev: pointer to belonging ccw device
- * @set: Status flags to set.
- * @tag: s390dbf trace record tag
  *
  * This function gets called by the common i/o layer and sets an adapter
  * into state offline.
  */
-static int zfcp_ccw_offline_sync(struct ccw_device *cdev, int set, char *tag)
+static int zfcp_ccw_set_offline(struct ccw_device *cdev)
 {
 	struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
 
 	if (!adapter)
 		return 0;
 
-	zfcp_erp_set_adapter_status(adapter, set);
-	zfcp_erp_adapter_shutdown(adapter, 0, tag);
+	zfcp_erp_set_adapter_status(adapter, 0);
+	zfcp_erp_adapter_shutdown(adapter, 0, "ccsoff1");
 	zfcp_erp_wait(adapter);
 
 	zfcp_ccw_adapter_put(adapter);
@@ -218,18 +216,6 @@ static int zfcp_ccw_offline_sync(struct ccw_device *cdev, int set, char *tag)
 }
 
 /**
- * zfcp_ccw_set_offline - set_offline function of zfcp driver
- * @cdev: pointer to belonging ccw device
- *
- * This function gets called by the common i/o layer and sets an adapter
- * into state offline.
- */
-static int zfcp_ccw_set_offline(struct ccw_device *cdev)
-{
-	return zfcp_ccw_offline_sync(cdev, 0, "ccsoff1");
-}
-
-/**
  * zfcp_ccw_notify - ccw notify function
  * @cdev: pointer to belonging ccw device
  * @event: indicates if adapter was detached or attached
@@ -246,11 +232,6 @@ static int zfcp_ccw_notify(struct ccw_device *cdev, int event)
 
 	switch (event) {
 	case CIO_GONE:
-		if (atomic_read(&adapter->status) &
-		    ZFCP_STATUS_ADAPTER_SUSPENDED) { /* notification ignore */
-			zfcp_dbf_hba_basic("ccnigo1", adapter);
-			break;
-		}
 		dev_warn(&cdev->dev, "The FCP device has been detached\n");
 		zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti1");
 		break;
@@ -260,11 +241,6 @@ static int zfcp_ccw_notify(struct ccw_device *cdev, int event)
 		zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti2");
 		break;
 	case CIO_OPER:
-		if (atomic_read(&adapter->status) &
-		    ZFCP_STATUS_ADAPTER_SUSPENDED) { /* notification ignore */
-			zfcp_dbf_hba_basic("ccniop1", adapter);
-			break;
-		}
 		dev_info(&cdev->dev, "The FCP device is operational again\n");
 		zfcp_erp_set_adapter_status(adapter,
 					    ZFCP_STATUS_COMMON_RUNNING);
@@ -300,28 +276,6 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev)
 	zfcp_ccw_adapter_put(adapter);
 }
 
-static int zfcp_ccw_suspend(struct ccw_device *cdev)
-{
-	zfcp_ccw_offline_sync(cdev, ZFCP_STATUS_ADAPTER_SUSPENDED, "ccsusp1");
-	return 0;
-}
-
-static int zfcp_ccw_thaw(struct ccw_device *cdev)
-{
-	/* trace records for thaw and final shutdown during suspend
-	   can only be found in system dump until the end of suspend
-	   but not after resume because it's based on the memory image
-	   right after the very first suspend (freeze) callback */
-	zfcp_ccw_activate(cdev, 0, "ccthaw1");
-	return 0;
-}
-
-static int zfcp_ccw_resume(struct ccw_device *cdev)
-{
-	zfcp_ccw_activate(cdev, ZFCP_STATUS_ADAPTER_SUSPENDED, "ccresu1");
-	return 0;
-}
-
 struct ccw_driver zfcp_ccw_driver = {
 	.driver = {
 		.owner	= THIS_MODULE,
@@ -334,7 +288,4 @@ struct ccw_driver zfcp_ccw_driver = {
 	.set_offline = zfcp_ccw_set_offline,
 	.notify      = zfcp_ccw_notify,
 	.shutdown    = zfcp_ccw_shutdown,
-	.freeze      = zfcp_ccw_suspend,
-	.thaw	     = zfcp_ccw_thaw,
-	.restore     = zfcp_ccw_resume,
 };