diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c2c7bf974397..edc927d9e85a 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -279,6 +279,7 @@ config S390
 	select SPARSE_IRQ
 	select SWIOTLB
 	select SYSCTL_EXCEPTION_TRACE
+	select SYSTEM_DATA_VERIFICATION if KEXEC_SIG
 	select THREAD_INFO_IN_TASK
 	select TRACE_IRQFLAGS_SUPPORT
 	select TTY
@@ -313,7 +314,7 @@ config ARCH_SUPPORTS_KEXEC_FILE
 	def_bool y
 
 config ARCH_SUPPORTS_KEXEC_SIG
-	def_bool MODULE_SIG_FORMAT
+	def_bool y
 
 config ARCH_SUPPORTS_KEXEC_PURGATORY
 	def_bool y
diff --git a/arch/s390/include/asm/debug.h b/arch/s390/include/asm/debug.h
index 6375276d94ea..c5440b3ee53d 100644
--- a/arch/s390/include/asm/debug.h
+++ b/arch/s390/include/asm/debug.h
@@ -45,7 +45,7 @@ typedef struct debug_info {
 	struct debug_info *next;
 	struct debug_info *prev;
 	refcount_t ref_count;
-	spinlock_t lock;
+	raw_spinlock_t lock;
 	int level;
 	int nr_areas;
 	int pages_per_area;
@@ -440,7 +440,7 @@ static int VNAME(var, active_entries)[EARLY_AREAS] __initdata
 	.next = NULL,							\
 	.prev = NULL,							\
 	.ref_count = REFCOUNT_INIT(1),					\
-	.lock = __SPIN_LOCK_UNLOCKED(var.lock),				\
+	.lock = __RAW_SPIN_LOCK_UNLOCKED(var.lock),			\
 	.level = DEBUG_DEFAULT_LEVEL,					\
 	.nr_areas = EARLY_AREAS,					\
 	.pages_per_area = EARLY_PAGES,					\
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 71cdb6845dd7..e722243841f8 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -243,7 +243,7 @@ static debug_info_t *debug_info_alloc(const char *name, int pages_per_area,
 	}
 
 	/* initialize members */
-	spin_lock_init(&rc->lock);
+	raw_spin_lock_init(&rc->lock);
 	rc->pages_per_area = pages_per_area;
 	rc->nr_areas	   = nr_areas;
 	rc->active_area    = 0;
@@ -333,7 +333,7 @@ static debug_info_t *debug_info_copy(debug_info_t *in, int mode)
 	do {
 		rc = debug_info_alloc(in->name, in->pages_per_area,
 			in->nr_areas, in->buf_size, in->level, mode);
-		spin_lock_irqsave(&in->lock, flags);
+		raw_spin_lock_irqsave(&in->lock, flags);
 		if (!rc)
 			goto out;
 		/* has something changed in the meantime ? */
@@ -341,7 +341,7 @@ static debug_info_t *debug_info_copy(debug_info_t *in, int mode)
 		    (rc->nr_areas == in->nr_areas)) {
 			break;
 		}
-		spin_unlock_irqrestore(&in->lock, flags);
+		raw_spin_unlock_irqrestore(&in->lock, flags);
 		debug_info_free(rc);
 	} while (1);
 
@@ -356,7 +356,7 @@ static debug_info_t *debug_info_copy(debug_info_t *in, int mode)
 	}
 	rc->active_area = in->active_area;
 out:
-	spin_unlock_irqrestore(&in->lock, flags);
+	raw_spin_unlock_irqrestore(&in->lock, flags);
 	return rc;
 }
 
@@ -879,20 +879,20 @@ void debug_register_static(debug_info_t *id, int pages_per_area, int nr_areas)
 		pr_err("Registering debug feature %s failed\n", id->name);
 
 		/* Clear pointers to prevent tracing into released initdata. */
-		spin_lock_irqsave(&id->lock, flags);
+		raw_spin_lock_irqsave(&id->lock, flags);
 		id->areas = NULL;
 		id->active_pages = NULL;
 		id->active_entries = NULL;
-		spin_unlock_irqrestore(&id->lock, flags);
+		raw_spin_unlock_irqrestore(&id->lock, flags);
 
 		return;
 	}
 
 	/* Replace static trace area with dynamic copy. */
-	spin_lock_irqsave(&id->lock, flags);
+	raw_spin_lock_irqsave(&id->lock, flags);
 	debug_events_append(copy, id);
 	debug_areas_swap(id, copy);
-	spin_unlock_irqrestore(&id->lock, flags);
+	raw_spin_unlock_irqrestore(&id->lock, flags);
 
 	/* Clear pointers to initdata and discard copy. */
 	copy->areas = NULL;
@@ -966,11 +966,11 @@ static int debug_set_size(debug_info_t *id, int nr_areas, int pages_per_area)
 		return -ENOMEM;
 	}
 
-	spin_lock_irqsave(&id->lock, flags);
+	raw_spin_lock_irqsave(&id->lock, flags);
 	debug_events_append(new_id, id);
 	debug_areas_swap(new_id, id);
+	raw_spin_unlock_irqrestore(&id->lock, flags);
 	debug_info_free(new_id);
-	spin_unlock_irqrestore(&id->lock, flags);
 	pr_info("%s: set new size (%i pages)\n", id->name, pages_per_area);
 
 	return 0;
@@ -1000,9 +1000,9 @@ void debug_set_level(debug_info_t *id, int new_level)
 		return;
 	}
 
-	spin_lock_irqsave(&id->lock, flags);
+	raw_spin_lock_irqsave(&id->lock, flags);
 	id->level = new_level;
-	spin_unlock_irqrestore(&id->lock, flags);
+	raw_spin_unlock_irqrestore(&id->lock, flags);
 }
 EXPORT_SYMBOL(debug_set_level);
 
@@ -1184,10 +1184,10 @@ debug_entry_t *debug_event_common(debug_info_t *id, int level, const void *buf,
 	if (!debug_active || !id->areas)
 		return NULL;
 	if (debug_critical) {
-		if (!spin_trylock_irqsave(&id->lock, flags))
+		if (!raw_spin_trylock_irqsave(&id->lock, flags))
 			return NULL;
 	} else {
-		spin_lock_irqsave(&id->lock, flags);
+		raw_spin_lock_irqsave(&id->lock, flags);
 	}
 	do {
 		active = get_active_entry(id);
@@ -1199,7 +1199,7 @@ debug_entry_t *debug_event_common(debug_info_t *id, int level, const void *buf,
 		buf += id->buf_size;
 	} while (len > 0);
 
-	spin_unlock_irqrestore(&id->lock, flags);
+	raw_spin_unlock_irqrestore(&id->lock, flags);
 	return active;
 }
 EXPORT_SYMBOL(debug_event_common);
@@ -1217,10 +1217,10 @@ debug_entry_t *debug_exception_common(debug_info_t *id, int level,
 	if (!debug_active || !id->areas)
 		return NULL;
 	if (debug_critical) {
-		if (!spin_trylock_irqsave(&id->lock, flags))
+		if (!raw_spin_trylock_irqsave(&id->lock, flags))
 			return NULL;
 	} else {
-		spin_lock_irqsave(&id->lock, flags);
+		raw_spin_lock_irqsave(&id->lock, flags);
 	}
 	do {
 		active = get_active_entry(id);
@@ -1232,7 +1232,7 @@ debug_entry_t *debug_exception_common(debug_info_t *id, int level,
 		buf += id->buf_size;
 	} while (len > 0);
 
-	spin_unlock_irqrestore(&id->lock, flags);
+	raw_spin_unlock_irqrestore(&id->lock, flags);
 	return active;
 }
 EXPORT_SYMBOL(debug_exception_common);
@@ -1267,10 +1267,10 @@ debug_entry_t *__debug_sprintf_event(debug_info_t *id, int level, char *string,
 	numargs = debug_count_numargs(string);
 
 	if (debug_critical) {
-		if (!spin_trylock_irqsave(&id->lock, flags))
+		if (!raw_spin_trylock_irqsave(&id->lock, flags))
 			return NULL;
 	} else {
-		spin_lock_irqsave(&id->lock, flags);
+		raw_spin_lock_irqsave(&id->lock, flags);
 	}
 	active = get_active_entry(id);
 	curr_event = (debug_sprintf_entry_t *) DEBUG_DATA(active);
@@ -1280,7 +1280,7 @@ debug_entry_t *__debug_sprintf_event(debug_info_t *id, int level, char *string,
 		curr_event->args[idx] = va_arg(ap, long);
 	va_end(ap);
 	debug_finish_entry(id, active, level, 0);
-	spin_unlock_irqrestore(&id->lock, flags);
+	raw_spin_unlock_irqrestore(&id->lock, flags);
 
 	return active;
 }
@@ -1303,10 +1303,10 @@ debug_entry_t *__debug_sprintf_exception(debug_info_t *id, int level, char *stri
 	numargs = debug_count_numargs(string);
 
 	if (debug_critical) {
-		if (!spin_trylock_irqsave(&id->lock, flags))
+		if (!raw_spin_trylock_irqsave(&id->lock, flags))
 			return NULL;
 	} else {
-		spin_lock_irqsave(&id->lock, flags);
+		raw_spin_lock_irqsave(&id->lock, flags);
 	}
 	active = get_active_entry(id);
 	curr_event = (debug_sprintf_entry_t *)DEBUG_DATA(active);
@@ -1316,7 +1316,7 @@ debug_entry_t *__debug_sprintf_exception(debug_info_t *id, int level, char *stri
 		curr_event->args[idx] = va_arg(ap, long);
 	va_end(ap);
 	debug_finish_entry(id, active, level, 1);
-	spin_unlock_irqrestore(&id->lock, flags);
+	raw_spin_unlock_irqrestore(&id->lock, flags);
 
 	return active;
 }
@@ -1350,7 +1350,7 @@ int debug_register_view(debug_info_t *id, struct debug_view *view)
 		mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
 	pde = debugfs_create_file(view->name, mode, id->debugfs_root_entry,
 				  id, &debug_file_ops);
-	spin_lock_irqsave(&id->lock, flags);
+	raw_spin_lock_irqsave(&id->lock, flags);
 	for (i = 0; i < DEBUG_MAX_VIEWS; i++) {
 		if (!id->views[i])
 			break;
@@ -1361,7 +1361,7 @@ int debug_register_view(debug_info_t *id, struct debug_view *view)
 		id->views[i] = view;
 		id->debugfs_entries[i] = pde;
 	}
-	spin_unlock_irqrestore(&id->lock, flags);
+	raw_spin_unlock_irqrestore(&id->lock, flags);
 	if (rc) {
 		pr_err("Registering view %s/%s would exceed the maximum "
 		       "number of views %i\n", id->name, view->name, i);
@@ -1391,7 +1391,7 @@ int debug_unregister_view(debug_info_t *id, struct debug_view *view)
 
 	if (!id)
 		goto out;
-	spin_lock_irqsave(&id->lock, flags);
+	raw_spin_lock_irqsave(&id->lock, flags);
 	for (i = 0; i < DEBUG_MAX_VIEWS; i++) {
 		if (id->views[i] == view)
 			break;
@@ -1403,7 +1403,7 @@ int debug_unregister_view(debug_info_t *id, struct debug_view *view)
 		id->views[i] = NULL;
 		id->debugfs_entries[i] = NULL;
 	}
-	spin_unlock_irqrestore(&id->lock, flags);
+	raw_spin_unlock_irqrestore(&id->lock, flags);
 	debugfs_remove(dentry);
 out:
 	return rc;
@@ -1557,7 +1557,7 @@ static void debug_flush(debug_info_t *id, int area)
 
 	if (!id || !id->areas)
 		return;
-	spin_lock_irqsave(&id->lock, flags);
+	raw_spin_lock_irqsave(&id->lock, flags);
 	if (area == DEBUG_FLUSH_ALL) {
 		id->active_area = 0;
 		memset(id->active_entries, 0, id->nr_areas * sizeof(int));
@@ -1572,7 +1572,7 @@ static void debug_flush(debug_info_t *id, int area)
 		for (i = 0; i < id->pages_per_area; i++)
 			memset(id->areas[area][i], 0, PAGE_SIZE);
 	}
-	spin_unlock_irqrestore(&id->lock, flags);
+	raw_spin_unlock_irqrestore(&id->lock, flags);
 }
 
 /*
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index b7429f30afc1..eb334539444a 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -1151,7 +1151,7 @@ int __ref smp_rescan_cpus(bool early)
 	smp_get_core_info(info, 0);
 	nr = __smp_rescan_cpus(info, early);
 	kfree(info);
-	if (nr)
+	if (nr && !early)
 		topology_schedule_update();
 	return 0;
 }
diff --git a/drivers/s390/char/tape_3490.c b/drivers/s390/char/tape_3490.c
index c4ea32af1b65..7302f1121553 100644
--- a/drivers/s390/char/tape_3490.c
+++ b/drivers/s390/char/tape_3490.c
@@ -784,7 +784,7 @@ tape_3490_online(struct ccw_device *cdev)
 
 static struct ccw_driver tape_3490_driver = {
 	.driver = {
-		.name = "tape_3490",
+		.name = "tape_34xx",
 		.owner = THIS_MODULE,
 	},
 	.ids = tape_3490_ids,