From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Wed, 24 Oct 2012 09:22:52 +0000 (+0200)
Subject: s390/cio: suppress 2nd path verification during resume
X-Git-Tag: firefly_0821_release~3680^2~1664^2~5
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=31370f75de4b641f47204899549d2a533cd42738;p=firefly-linux-kernel-4.4.55.git

s390/cio: suppress 2nd path verification during resume

Do not trigger a path verification in the subchannel event
function during resume from hibernate. This will be started
by the pm_restore callback later.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index fc916f5d7314..fd3143c291c6 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1424,7 +1424,7 @@ static enum io_sch_action sch_get_action(struct subchannel *sch)
 	}
 	if (device_is_disconnected(cdev))
 		return IO_SCH_REPROBE;
-	if (cdev->online)
+	if (cdev->online && !cdev->private->flags.resuming)
 		return IO_SCH_VERIFY;
 	if (cdev->private->state == DEV_STATE_NOT_OPER)
 		return IO_SCH_UNREG_ATTACH;
@@ -1469,12 +1469,6 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
 		rc = 0;
 		goto out_unlock;
 	case IO_SCH_VERIFY:
-		if (cdev->private->flags.resuming == 1) {
-			if (cio_enable_subchannel(sch, (u32)(addr_t)sch)) {
-				ccw_device_set_notoper(cdev);
-				break;
-			}
-		}
 		/* Trigger path verification. */
 		io_subchannel_verify(sch);
 		rc = 0;