Merge tag 'vfio-v5.14-rc1' of git://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

 - Module reference fixes, structure renaming (Max Gurtovoy)

 - Export and use common pci_dev_trylock() (Luis Chamberlain)

 - Enable direct mdev device creation and probing by parent (Christoph
   Hellwig & Jason Gunthorpe)

 - Fix mdpy error path leak (Colin Ian King)

 - Fix mtty list entry leak (Jason Gunthorpe)

 - Enforce mtty device limit (Alex Williamson)

 - Resolve concurrent vfio-pci mmap faults (Alex Williamson)

* tag 'vfio-v5.14-rc1' of git://github.com/awilliam/linux-vfio:
  vfio/pci: Handle concurrent vma faults
  vfio/mtty: Enforce available_instances
  vfio/mtty: Delete mdev_devices_list
  vfio: use the new pci_dev_trylock() helper to simplify try lock
  PCI: Export pci_dev_trylock() and pci_dev_unlock()
  vfio/mdpy: Fix memory leak of object mdev_state->vconfig
  vfio/iommu_type1: rename vfio_group struck to vfio_iommu_group
  vfio/mbochs: Convert to use vfio_register_group_dev()
  vfio/mdpy: Convert to use vfio_register_group_dev()
  vfio/mtty: Convert to use vfio_register_group_dev()
  vfio/mdev: Allow the mdev_parent_ops to specify the device driver to bind
  vfio/mdev: Remove CONFIG_VFIO_MDEV_DEVICE
  driver core: Export device_driver_attach()
  driver core: Don't return EPROBE_DEFER to userspace during sysfs bind
  driver core: Flow the return code from ->probe() through to sysfs bind
  driver core: Better distinguish probe errors in really_probe
  driver core: Pull required checks into driver_probe_device()
  vfio/platform: remove unneeded parent_module attribute
  vfio: centralize module refcount in subsystem layer

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 8d4ebe095d0c..e3bb0d073352 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -5038,7 +5038,7 @@ static void pci_dev_lock(struct pci_dev *dev)
 }
 
 /* Return 1 on successful lock, 0 on contention */
-static int pci_dev_trylock(struct pci_dev *dev)
+int pci_dev_trylock(struct pci_dev *dev)
 {
 	if (pci_cfg_access_trylock(dev)) {
 		if (device_trylock(&dev->dev))
@@ -5048,12 +5048,14 @@ static int pci_dev_trylock(struct pci_dev *dev)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(pci_dev_trylock);
 
-static void pci_dev_unlock(struct pci_dev *dev)
+void pci_dev_unlock(struct pci_dev *dev)
 {
 	device_unlock(&dev->dev);
 	pci_cfg_access_unlock(dev);
 }
+EXPORT_SYMBOL_GPL(pci_dev_unlock);
 
 static void pci_dev_save_and_disable(struct pci_dev *dev)
 {