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

Pull s390 update from Martin Schwidefsky:
 "The most prominent change in this patch set is the software dirty bit
  patch for s390.  It removes __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY and
  the page_test_and_clear_dirty primitive which makes the common memory
  management code a bit less obscure.

  Heiko fixed most of the PCI related fallout, more often than not
  missing GENERIC_HARDIRQS dependencies.  Notable is one of the 3270
  patches which adds an export to tty_io to be able to resize a tty.

  The rest is the usual bunch of cleanups and bug fixes."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (42 commits)
  s390/module: Add missing R_390_NONE relocation type
  drivers/gpio: add missing GENERIC_HARDIRQ dependency
  drivers/input: add couple of missing GENERIC_HARDIRQS dependencies
  s390/cleanup: rename SPP to LPP
  s390/mm: implement software dirty bits
  s390/mm: Fix crst upgrade of mmap with MAP_FIXED
  s390/linker skript: discard exit.data at runtime
  drivers/media: add missing GENERIC_HARDIRQS dependency
  s390/bpf,jit: add vlan tag support
  drivers/net,AT91RM9200: add missing GENERIC_HARDIRQS dependency
  iucv: fix kernel panic at reboot
  s390/Kconfig: sort list of arch selected config options
  phylib: remove !S390 dependeny from Kconfig
  uio: remove !S390 dependency from Kconfig
  dasd: fix sysfs cleanup in dasd_generic_remove
  s390/pci: fix hotplug module init
  s390/pci: cleanup clp page allocation
  s390/pci: cleanup clp inline assembly
  s390/perf: cpum_cf: fallback to software sampling events
  s390/mm: provide PAGE_SHARED define
  ...

1 files changed, 26 insertions, 34 deletions

diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c
index dee68e0698e..7db249a2501 100644
--- a/drivers/pci/hotplug/s390_pci_hpc.c
+++ b/drivers/pci/hotplug/s390_pci_hpc.c
@@ -172,25 +172,6 @@ error:
 	return -ENOMEM;
 }
 
-static int __init init_pci_slots(void)
-{
-	struct zpci_dev *zdev;
-	int device = 0;
-
-	/*
-	 * Create a structure for each slot, and register that slot
-	 * with the pci_hotplug subsystem.
-	 */
-	mutex_lock(&zpci_list_lock);
-	list_for_each_entry(zdev, &zpci_list, entry) {
-		init_pci_slot(zdev);
-		device++;
-	}
-
-	mutex_unlock(&zpci_list_lock);
-	return (device) ? 0 : -ENODEV;
-}
-
 static void exit_pci_slot(struct zpci_dev *zdev)
 {
 	struct list_head *tmp, *n;
@@ -205,6 +186,26 @@ static void exit_pci_slot(struct zpci_dev *zdev)
 	}
 }
 
+static struct pci_hp_callback_ops hp_ops = {
+	.create_slot = init_pci_slot,
+	.remove_slot = exit_pci_slot,
+};
+
+static void __init init_pci_slots(void)
+{
+	struct zpci_dev *zdev;
+
+	/*
+	 * Create a structure for each slot, and register that slot
+	 * with the pci_hotplug subsystem.
+	 */
+	mutex_lock(&zpci_list_lock);
+	list_for_each_entry(zdev, &zpci_list, entry) {
+		init_pci_slot(zdev);
+	}
+	mutex_unlock(&zpci_list_lock);
+}
+
 static void __exit exit_pci_slots(void)
 {
 	struct list_head *tmp, *n;
@@ -224,28 +225,19 @@ static void __exit exit_pci_slots(void)
 
 static int __init pci_hotplug_s390_init(void)
 {
-	/*
-	 * Do specific initialization stuff for your driver here
-	 * like initializing your controller hardware (if any) and
-	 * determining the number of slots you have in the system
-	 * right now.
-	 */
-
-	if (!pci_probe)
+	if (!s390_pci_probe)
 		return -EOPNOTSUPP;
 
-	/* register callbacks for slot handling from arch code */
-	mutex_lock(&zpci_list_lock);
-	hotplug_ops.create_slot = init_pci_slot;
-	hotplug_ops.remove_slot = exit_pci_slot;
-	mutex_unlock(&zpci_list_lock);
-	pr_info("registered hotplug slot callbacks\n");
-	return init_pci_slots();
+	zpci_register_hp_ops(&hp_ops);
+	init_pci_slots();
+
+	return 0;
 }
 
 static void __exit pci_hotplug_s390_exit(void)
 {
 	exit_pci_slots();
+	zpci_deregister_hp_ops();
 }
 
 module_init(pci_hotplug_s390_init);