6 files changed, 38 insertions, 30 deletions

diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index b78b86e8f281..a367f95c7c53 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -970,8 +970,6 @@ static void tty3270_resize(struct raw3270_view *view,
 	char **old_rcl_lines, **new_rcl_lines;
 	char *old_prompt, *new_prompt;
 	char *old_input, *new_input;
-	struct tty_struct *tty;
-	struct winsize ws;
 	size_t prompt_sz;
 	int new_allocated, old_allocated = tp->allocated_lines;
 
@@ -1023,14 +1021,14 @@ static void tty3270_resize(struct raw3270_view *view,
 	kfree(old_prompt);
 	tty3270_free_recall(old_rcl_lines);
 	tty3270_set_timer(tp, 1);
-	/* Informat tty layer about new size */
-	tty = tty_port_tty_get(&tp->port);
-	if (!tty)
-		return;
-	ws.ws_row = tty3270_tty_rows(tp);
-	ws.ws_col = tp->view.cols;
-	tty_do_resize(tty, &ws);
-	tty_kref_put(tty);
+	/* Inform the tty layer about new size */
+	scoped_guard(tty_port_tty, &tp->port) {
+		struct winsize ws = {
+			.ws_row = tty3270_tty_rows(tp),
+			.ws_col = tp->view.cols,
+		};
+		tty_do_resize(scoped_tty(), &ws);
+	}
 	return;
 out_screen:
 	tty3270_free_screen(screen, new_rows);
diff --git a/drivers/s390/char/sclp_early_core.c b/drivers/s390/char/sclp_early_core.c
index b5bd40f13c75..55e50d428aab 100644
--- a/drivers/s390/char/sclp_early_core.c
+++ b/drivers/s390/char/sclp_early_core.c
@@ -51,7 +51,7 @@ void sclp_early_wait_irq(void)
 			"	stg	%[addr],%[psw_wait_addr]\n"
 			"	stg	%[addr],%[psw_ext_addr]\n"
 			"	lpswe	%[psw_wait]\n"
-			"0:\n"
+			"0:"
 			: [addr] "=&d" (addr),
 			  [psw_wait_addr] "=Q" (psw_wait.addr),
 			  [psw_ext_addr] "=Q" (get_lowcore()->external_new_psw.addr)
diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index fdab760f1f28..b7048f2b036e 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -167,7 +167,7 @@ static inline void cmf_activate(void *area, unsigned int onoff)
 	asm volatile(
 		"	lgr	1,%[r1]\n"
 		"	lgr	2,%[mbo]\n"
-		"	schm\n"
+		"	schm"
 		:
 		: [r1] "d" ((unsigned long)onoff),
 		  [mbo] "d" (virt_to_phys(area))
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index fb2c07cb4d3d..4b2dae6eb376 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1316,23 +1316,34 @@ void ccw_device_schedule_recovery(void)
 	spin_unlock_irqrestore(&recovery_lock, flags);
 }
 
-static int purge_fn(struct device *dev, void *data)
+static int purge_fn(struct subchannel *sch, void *data)
 {
-	struct ccw_device *cdev = to_ccwdev(dev);
-	struct ccw_dev_id *id = &cdev->private->dev_id;
-	struct subchannel *sch = to_subchannel(cdev->dev.parent);
+	struct ccw_device *cdev;
 
-	spin_lock_irq(cdev->ccwlock);
-	if (is_blacklisted(id->ssid, id->devno) &&
-	    (cdev->private->state == DEV_STATE_OFFLINE) &&
-	    (atomic_cmpxchg(&cdev->private->onoff, 0, 1) == 0)) {
-		CIO_MSG_EVENT(3, "ccw: purging 0.%x.%04x\n", id->ssid,
-			      id->devno);
+	spin_lock_irq(&sch->lock);
+	if (sch->st != SUBCHANNEL_TYPE_IO || !sch->schib.pmcw.dnv)
+		goto unlock;
+
+	if (!is_blacklisted(sch->schid.ssid, sch->schib.pmcw.dev))
+		goto unlock;
+
+	cdev = sch_get_cdev(sch);
+	if (cdev) {
+		if (cdev->private->state != DEV_STATE_OFFLINE)
+			goto unlock;
+
+		if (atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0)
+			goto unlock;
 		ccw_device_sched_todo(cdev, CDEV_TODO_UNREG);
-		css_sched_sch_todo(sch, SCH_TODO_UNREG);
 		atomic_set(&cdev->private->onoff, 0);
 	}
-	spin_unlock_irq(cdev->ccwlock);
+
+	css_sched_sch_todo(sch, SCH_TODO_UNREG);
+	CIO_MSG_EVENT(3, "ccw: purging 0.%x.%04x%s\n", sch->schid.ssid,
+		      sch->schib.pmcw.dev, cdev ? "" : " (no cdev)");
+
+unlock:
+	spin_unlock_irq(&sch->lock);
 	/* Abort loop in case of pending signal. */
 	if (signal_pending(current))
 		return -EINTR;
@@ -1348,7 +1359,7 @@ static int purge_fn(struct device *dev, void *data)
 int ccw_purge_blacklisted(void)
 {
 	CIO_MSG_EVENT(2, "ccw: purging blacklisted devices\n");
-	bus_for_each_dev(&ccw_bus_type, NULL, NULL, purge_fn);
+	for_each_subchannel_staged(purge_fn, NULL, NULL);
 	return 0;
 }
 
diff --git a/drivers/s390/cio/ioasm.c b/drivers/s390/cio/ioasm.c
index a540045b64a6..8b06b234e110 100644
--- a/drivers/s390/cio/ioasm.c
+++ b/drivers/s390/cio/ioasm.c
@@ -253,11 +253,10 @@ static inline int __xsch(struct subchannel_id schid)
 	asm volatile(
 		"	lgr	1,%[r1]\n"
 		"	xsch\n"
-		"	ipm	%[cc]\n"
-		"	srl	%[cc],28\n"
-		: [cc] "=&d" (ccode)
+		CC_IPM(cc)
+		: CC_OUT(cc, ccode)
 		: [r1] "d" (r1)
-		: "cc", "1");
+		: CC_CLOBBER_LIST("1"));
 	return CC_TRANSFORM(ccode);
 }
 
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c
index 766557547f83..eb5ff49f6fe7 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -354,7 +354,7 @@ static int vfio_ap_validate_nib(struct kvm_vcpu *vcpu, dma_addr_t *nib)
 
 	if (!*nib)
 		return -EINVAL;
-	if (kvm_is_error_hva(gfn_to_hva(vcpu->kvm, *nib >> PAGE_SHIFT)))
+	if (!kvm_s390_is_gpa_in_memslot(vcpu->kvm, *nib))
 		return -EINVAL;
 
 	return 0;