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PCI: introduce pci_is_pcie()

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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>
This commit is contained in:
Kenji Kaneshige
2009-11-11 14:35:22 +09:00
committed by Jesse Barnes
parent 1518c17ab7
commit 7eb776c42e
1 changed files with 11 additions and 0 deletions
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11
include/linux/pci.h
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@@ -1317,5 +1317,16 @@ static inline int pci_pcie_cap(struct pci_dev *dev)
return dev->pcie_cap; 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 /* __KERNEL__ */
#endif /* LINUX_PCI_H */ #endif /* LINUX_PCI_H */