Messages in this thread Patch in this message | | | From | Luis Chamberlain <> | Subject | [PATCH 1/2] pci: export pci_dev_unlock() and the respective unlock | Date | Mon, 21 Jun 2021 17:03:09 -0700 |
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Other places in the kernel use this form, and so just provide a common path for it.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> --- drivers/pci/pci.c | 6 ++++-- 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 f09821af1d2e..b1d9bb3f5ae2 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -5027,7 +5027,7 @@ 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)) @@ -5037,12 +5037,14 @@ 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 6248e044dd29..c55368f58965 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1353,6 +1353,9 @@ int devm_request_pci_bus_resources(struct device *dev, /* Temporary until new and working PCI SBR API in place */ int pci_bridge_secondary_bus_reset(struct pci_dev *dev); +int pci_dev_trylock(struct pci_dev *dev); +void pci_dev_unlock(struct pci_dev *dev); + #define pci_bus_for_each_resource(bus, res, i) \ for (i = 0; \ (res = pci_bus_resource_n(bus, i)) || i < PCI_BRIDGE_RESOURCE_NUM; \ -- 2.30.2
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