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authorLinus Torvalds <torvalds@linux-foundation.org>2021-07-03 11:49:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-07-03 11:49:33 -0700
commit8e8d9442d1139d05d0c3b83efa34c4b7693d2969 (patch)
tree33af777d1e177b0f950a406ae7c8a2dac2147dbc /drivers/pci/pci.c
parent58ec9059b396a570b208239b4edc45eeb68b14c4 (diff)
parent6a45ece4c9af473555f01f0f8b97eba56e3c7d0d (diff)
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
Diffstat (limited to 'drivers/pci/pci.c')
-rw-r--r--drivers/pci/pci.c6
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)
{