Merge tag 's390-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

 - Add support for multi-function devices in pci code.

 - Enable PF-VF linking for architectures using the pdev->no_vf_scan
   flag (currently just s390).

 - Add reipl from NVMe support.

 - Get rid of critical section cleanup in entry.S.

 - Refactor PNSO CHSC (perform network subchannel operation) in cio and
   qeth.

 - QDIO interrupts and error handling fixes and improvements, more
   refactoring changes.

 - Align ioremap() with generic code.

 - Accept requests without the prefetch bit set in vfio-ccw.

 - Enable path handling via two new regions in vfio-ccw.

 - Other small fixes and improvements all over the code.

* tag 's390-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (52 commits)
  vfio-ccw: make vfio_ccw_regops variables declarations static
  vfio-ccw: Add trace for CRW event
  vfio-ccw: Wire up the CRW irq and CRW region
  vfio-ccw: Introduce a new CRW region
  vfio-ccw: Refactor IRQ handlers
  vfio-ccw: Introduce a new schib region
  vfio-ccw: Refactor the unregister of the async regions
  vfio-ccw: Register a chp_event callback for vfio-ccw
  vfio-ccw: Introduce new helper functions to free/destroy regions
  vfio-ccw: document possible errors
  vfio-ccw: Enable transparent CCW IPL from DASD
  s390/pci: Log new handle in clp_disable_fh()
  s390/cio, s390/qeth: cleanup PNSO CHSC
  s390/qdio: remove q->first_to_kick
  s390/qdio: fix up qdio_start_irq() kerneldoc
  s390: remove critical section cleanup from entry.S
  s390: add machine check SIGP
  s390/pci: ioremap() align with generic code
  s390/ap: introduce new ap function ap_get_qdev()
  Documentation/s390: Update / remove developerWorks web links
  ...

1 files changed, 11 insertions, 5 deletions

diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c
index 39295d88f670..b59f84918fe0 100644
--- a/drivers/pci/hotplug/s390_pci_hpc.c
+++ b/drivers/pci/hotplug/s390_pci_hpc.c
@@ -52,6 +52,7 @@ static int enable_slot(struct hotplug_slot *hotplug_slot)
 {
 	struct zpci_dev *zdev = container_of(hotplug_slot, struct zpci_dev,
 					     hotplug_slot);
+	struct zpci_bus *zbus = zdev->zbus;
 	int rc;
 
 	if (zdev->state != ZPCI_FN_STATE_STANDBY)
@@ -65,9 +66,9 @@ static int enable_slot(struct hotplug_slot *hotplug_slot)
 	if (rc)
 		goto out_deconfigure;
 
-	pci_scan_slot(zdev->bus, ZPCI_DEVFN);
+	pci_scan_slot(zbus->bus, zdev->devfn);
 	pci_lock_rescan_remove();
-	pci_bus_add_devices(zdev->bus);
+	pci_bus_add_devices(zbus->bus);
 	pci_unlock_rescan_remove();
 
 	return rc;
@@ -82,13 +83,17 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
 	struct zpci_dev *zdev = container_of(hotplug_slot, struct zpci_dev,
 					     hotplug_slot);
 	struct pci_dev *pdev;
+	struct zpci_bus *zbus = zdev->zbus;
 	int rc;
 
 	if (!zpci_fn_configured(zdev->state))
 		return -EIO;
 
-	pdev = pci_get_slot(zdev->bus, ZPCI_DEVFN);
+	pdev = pci_get_slot(zbus->bus, zdev->devfn);
 	if (pdev) {
+		if (pci_num_vf(pdev))
+			return -EBUSY;
+
 		pci_stop_and_remove_bus_device_locked(pdev);
 		pci_dev_put(pdev);
 	}
@@ -133,12 +138,13 @@ static const struct hotplug_slot_ops s390_hotplug_slot_ops = {
 int zpci_init_slot(struct zpci_dev *zdev)
 {
 	char name[SLOT_NAME_SIZE];
+	struct zpci_bus *zbus = zdev->zbus;
 
 	zdev->hotplug_slot.ops = &s390_hotplug_slot_ops;
 
 	snprintf(name, SLOT_NAME_SIZE, "%08x", zdev->fid);
-	return pci_hp_register(&zdev->hotplug_slot, zdev->bus,
-			       ZPCI_DEVFN, name);
+	return pci_hp_register(&zdev->hotplug_slot, zbus->bus,
+			       zdev->devfn, name);
 }
 
 void zpci_exit_slot(struct zpci_dev *zdev)