diff options
| author | Luis Chamberlain <mcgrof@kernel.org> | 2021-06-22 19:28:23 -0700 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2021-06-24 13:32:31 -0600 |
| commit | e3a9b1212b9d6cb20751196e338f4a5138d539d3 (patch) | |
| tree | 88daa90a1b7f8af30010d12af9ca09dff5163ca5 | |
| parent | 0af5160edb87b1868eba514422d3991628a018f8 (diff) | |
PCI: Export pci_dev_trylock() and pci_dev_unlock()
Other places in the kernel use this form, and so just
provide a common path for it.
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Link: https://lore.kernel.org/r/20210623022824.308041-2-mcgrof@kernel.org
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
| -rw-r--r-- | drivers/pci/pci.c | 6 | ||||
| -rw-r--r-- | include/linux/pci.h | 3 |
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index b717680377a9..10f08ed3589f 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -5028,7 +5028,7 @@ 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)) @@ -5038,12 +5038,14 @@ 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) { diff --git a/include/linux/pci.h b/include/linux/pci.h index 24306504226a..7765c325706a 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1621,6 +1621,9 @@ void pci_cfg_access_lock(struct pci_dev *dev); bool pci_cfg_access_trylock(struct pci_dev *dev); void pci_cfg_access_unlock(struct pci_dev *dev); +int pci_dev_trylock(struct pci_dev *dev); +void pci_dev_unlock(struct pci_dev *dev); + /* * PCI domain support. Sometimes called PCI segment (eg by ACPI), * a PCI domain is defined to be a set of PCI buses which share |