Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:
 "Since Martin is on vacation you get the s390 pull request for the
  v4.15 merge window this time from me.

  Besides a lot of cleanups and bug fixes these are the most important
  changes:

   - a new regset for runtime instrumentation registers

   - hardware accelerated AES-GCM support for the aes_s390 module

   - support for the new CEX6S crypto cards

   - support for FORTIFY_SOURCE

   - addition of missing z13 and new z14 instructions to the in-kernel
     disassembler

   - generate opcode tables for the in-kernel disassembler out of a
     simple text file instead of having to manually maintain those
     tables

   - fast memset16, memset32 and memset64 implementations

   - removal of named saved segment support

   - hardware counter support for z14

   - queued spinlocks and queued rwlocks implementations for s390

   - use the stack_depth tracking feature for s390 BPF JIT

   - a new s390_sthyi system call which emulates the sthyi (store
     hypervisor information) instruction

   - removal of the old KVM virtio transport

   - an s390 specific CPU alternatives implementation which is used in
     the new spinlock code"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (88 commits)
  MAINTAINERS: add virtio-ccw.h to virtio/s390 section
  s390/noexec: execute kexec datamover without DAT
  s390: fix transactional execution control register handling
  s390/bpf: take advantage of stack_depth tracking
  s390: simplify transactional execution elf hwcap handling
  s390/zcrypt: Rework struct ap_qact_ap_info.
  s390/virtio: remove unused header file kvm_virtio.h
  s390: avoid undefined behaviour
  s390/disassembler: generate opcode tables from text file
  s390/disassembler: remove insn_to_mnemonic()
  s390/dasd: avoid calling do_gettimeofday()
  s390: vfio-ccw: Do not attempt to free no-op, test and tic cda.
  s390: remove named saved segment support
  s390/archrandom: Reconsider s390 arch random implementation
  s390/pci: do not require AIS facility
  s390/qdio: sanitize put_indicator
  s390/qdio: use atomic_cmpxchg
  s390/nmi: avoid using long-displacement facility
  s390: pass endianness info to sparse
  s390/decompressor: remove informational messages
  ...

6 files changed, 14 insertions, 21 deletions

diff --git a/drivers/s390/char/sclp_con.c b/drivers/s390/char/sclp_con.c
index d247f238faf8..7027e61a6931 100644
--- a/drivers/s390/char/sclp_con.c
+++ b/drivers/s390/char/sclp_con.c
@@ -211,11 +211,8 @@ sclp_console_write(struct console *console, const char *message,
 	/* Setup timer to output current console buffer after 1/10 second */
 	if (sclp_conbuf != NULL && sclp_chars_in_buffer(sclp_conbuf) != 0 &&
 	    !timer_pending(&sclp_con_timer)) {
-		init_timer(&sclp_con_timer);
-		sclp_con_timer.function = sclp_console_timeout;
-		sclp_con_timer.data = 0UL;
-		sclp_con_timer.expires = jiffies + HZ/10;
-		add_timer(&sclp_con_timer);
+		setup_timer(&sclp_con_timer, sclp_console_timeout, 0UL);
+		mod_timer(&sclp_con_timer, jiffies + HZ / 10);
 	}
 out:
 	spin_unlock_irqrestore(&sclp_con_lock, flags);
diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c
index 875628dab419..1cceefdc03e0 100644
--- a/drivers/s390/char/sclp_tty.c
+++ b/drivers/s390/char/sclp_tty.c
@@ -218,11 +218,8 @@ static int sclp_tty_write_string(const unsigned char *str, int count, int may_fa
 	/* Setup timer to output current console buffer after 1/10 second */
 	if (sclp_ttybuf && sclp_chars_in_buffer(sclp_ttybuf) &&
 	    !timer_pending(&sclp_tty_timer)) {
-		init_timer(&sclp_tty_timer);
-		sclp_tty_timer.function = sclp_tty_timeout;
-		sclp_tty_timer.data = 0UL;
-		sclp_tty_timer.expires = jiffies + HZ/10;
-		add_timer(&sclp_tty_timer);
+		setup_timer(&sclp_tty_timer, sclp_tty_timeout, 0UL);
+		mod_timer(&sclp_tty_timer, jiffies + HZ / 10);
 	}
 	spin_unlock_irqrestore(&sclp_tty_lock, flags);
 out:
diff --git a/drivers/s390/char/tape_class.c b/drivers/s390/char/tape_class.c
index 91c3c642c76e..e7d23048d3f0 100644
--- a/drivers/s390/char/tape_class.c
+++ b/drivers/s390/char/tape_class.c
@@ -68,9 +68,8 @@ struct tape_class_device *register_tape_dev(
 
 	tcd->char_device->owner = fops->owner;
 	tcd->char_device->ops   = fops;
-	tcd->char_device->dev   = dev;
 
-	rc = cdev_add(tcd->char_device, tcd->char_device->dev, 1);
+	rc = cdev_add(tcd->char_device, dev, 1);
 	if (rc)
 		goto fail_with_cdev;
 
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index b19020b9efff..62559dc0169f 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -812,8 +812,7 @@ static int vmlogrdr_register_cdev(dev_t dev)
 	}
 	vmlogrdr_cdev->owner = THIS_MODULE;
 	vmlogrdr_cdev->ops = &vmlogrdr_fops;
-	vmlogrdr_cdev->dev = dev;
-	rc = cdev_add(vmlogrdr_cdev, vmlogrdr_cdev->dev, MAXMINOR);
+	rc = cdev_add(vmlogrdr_cdev, dev, MAXMINOR);
 	if (!rc)
 		return 0;
 
diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c
index 04aceb694d51..fa90ef05afc0 100644
--- a/drivers/s390/char/vmur.c
+++ b/drivers/s390/char/vmur.c
@@ -110,7 +110,7 @@ static struct urdev *urdev_alloc(struct ccw_device *cdev)
 	mutex_init(&urd->io_mutex);
 	init_waitqueue_head(&urd->wait);
 	spin_lock_init(&urd->open_lock);
-	atomic_set(&urd->ref_count,  1);
+	refcount_set(&urd->ref_count,  1);
 	urd->cdev = cdev;
 	get_device(&cdev->dev);
 	return urd;
@@ -126,7 +126,7 @@ static void urdev_free(struct urdev *urd)
 
 static void urdev_get(struct urdev *urd)
 {
-	atomic_inc(&urd->ref_count);
+	refcount_inc(&urd->ref_count);
 }
 
 static struct urdev *urdev_get_from_cdev(struct ccw_device *cdev)
@@ -159,7 +159,7 @@ static struct urdev *urdev_get_from_devno(u16 devno)
 
 static void urdev_put(struct urdev *urd)
 {
-	if (atomic_dec_and_test(&urd->ref_count))
+	if (refcount_dec_and_test(&urd->ref_count))
 		urdev_free(urd);
 }
 
@@ -892,10 +892,9 @@ static int ur_set_online(struct ccw_device *cdev)
 	}
 
 	urd->char_device->ops = &ur_fops;
-	urd->char_device->dev = MKDEV(major, minor);
 	urd->char_device->owner = ur_fops.owner;
 
-	rc = cdev_add(urd->char_device, urd->char_device->dev, 1);
+	rc = cdev_add(urd->char_device, MKDEV(major, minor), 1);
 	if (rc)
 		goto fail_free_cdev;
 	if (urd->cdev->id.cu_type == READER_PUNCH_DEVTYPE) {
@@ -946,7 +945,7 @@ static int ur_set_offline_force(struct ccw_device *cdev, int force)
 		rc = -EBUSY;
 		goto fail_urdev_put;
 	}
-	if (!force && (atomic_read(&urd->ref_count) > 2)) {
+	if (!force && (refcount_read(&urd->ref_count) > 2)) {
 		/* There is still a user of urd (e.g. ur_open) */
 		TRACE("ur_set_offline: BUSY\n");
 		rc = -EBUSY;
diff --git a/drivers/s390/char/vmur.h b/drivers/s390/char/vmur.h
index 67164ba22f11..608b0719ce17 100644
--- a/drivers/s390/char/vmur.h
+++ b/drivers/s390/char/vmur.h
@@ -12,6 +12,8 @@
 #ifndef _VMUR_H_
 #define _VMUR_H_
 
+#include <linux/refcount.h>
+
 #define DEV_CLASS_UR_I 0x20 /* diag210 unit record input device class */
 #define DEV_CLASS_UR_O 0x10 /* diag210 unit record output device class */
 /*
@@ -70,7 +72,7 @@ struct urdev {
 	size_t reclen;			/* Record length for *write* CCWs */
 	int class;			/* VM device class */
 	int io_request_rc;		/* return code from I/O request */
-	atomic_t ref_count;		/* reference counter */
+	refcount_t ref_count;		/* reference counter */
 	wait_queue_head_t wait;		/* wait queue to serialize open */
 	int open_flag;			/* "urdev is open" flag */
 	spinlock_t open_lock;		/* serialize critical sections */