diff options
Diffstat (limited to 'drivers/pci/pci.h')
| -rw-r--r-- | drivers/pci/pci.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 1cdc2c9547a7..b65868e70951 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -165,6 +165,22 @@ static inline void pci_wakeup_event(struct pci_dev *dev) pm_wakeup_event(&dev->dev, 100); } +/** + * pci_bar_index_is_valid - Check whether a BAR index is within valid range + * @bar: BAR index + * + * Protects against overflowing &struct pci_dev.resource array. + * + * Return: true for valid index, false otherwise. + */ +static inline bool pci_bar_index_is_valid(int bar) +{ + if (bar >= 0 && bar < PCI_NUM_RESOURCES) + return true; + + return false; +} + static inline bool pci_has_subordinate(struct pci_dev *pci_dev) { return !!(pci_dev->subordinate); @@ -374,6 +390,7 @@ static inline int pcie_dev_speed_mbps(enum pci_bus_speed speed) return -EINVAL; } +u8 pcie_get_supported_speeds(struct pci_dev *dev); const char *pci_speed_string(enum pci_bus_speed speed); enum pci_bus_speed pcie_get_speed_cap(struct pci_dev *dev); enum pcie_link_width pcie_get_width_cap(struct pci_dev *dev); |