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| author | Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> | 2009-11-11 14:35:22 +0900 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-11-24 15:25:16 -0800 |
| commit | 7eb776c42e75d17bd8107a1359068d8c742639d1 (patch) | |
| tree | eddee4ecffebc2ac54c1eee548802367c5f17c68 /include/linux/pci.h | |
| parent | 1518c17ab736303098843bd306a0fc4f8f5faa42 (diff) | |
| download | lwn-7eb776c42e75d17bd8107a1359068d8c742639d1.tar.gz lwn-7eb776c42e75d17bd8107a1359068d8c742639d1.zip | |
PCI: introduce pci_is_pcie()
Introduce pci_is_pcie() which returns true if the specified PCI device
is PCI Express capable, false otherwise.
The purpose of pci_is_pcie() is removing 'is_pcie' flag in the struct
pci_dev, which is not needed because we can check it using 'pcie_cap'
field. To remove 'is_pcie', we need to update user of 'is_pcie' to use
pci_is_pcie() instead first.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 15f37f102dd3..2891c3d3e51a 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1317,5 +1317,16 @@ static inline int pci_pcie_cap(struct pci_dev *dev) return dev->pcie_cap; } +/** + * pci_is_pcie - check if the PCI device is PCI Express capable + * @dev: PCI device + * + * Retrun true if the PCI device is PCI Express capable, false otherwise. + */ +static inline bool pci_is_pcie(struct pci_dev *dev) +{ + return !!pci_pcie_cap(dev); +} + #endif /* __KERNEL__ */ #endif /* LINUX_PCI_H */ |