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PCI: Add pci_bus_find_ext_capability

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For use by code that needs to walk extended capability lists before
pci_dev structures are set up.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
LKML-Reference: <43F901BD926A4E43B106BF17856F07559FB80CFD@orsmsx508.amr.corp.intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Jesse Barnes
2009-07-15 13:13:00 -07:00
committed by H. Peter Anvin
parent 724e6d3fe8
commit cf4c43dd43
2 changed files with 45 additions and 0 deletions
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2
include/linux/pci.h
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@ -631,6 +631,8 @@ enum pci_lost_interrupt_reason pci_lost_interrupt(struct pci_dev *dev);
int pci_find_capability(struct pci_dev *dev, int cap);
int pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap);
int pci_find_ext_capability(struct pci_dev *dev, int cap);
int pci_bus_find_ext_capability(struct pci_bus *bus, unsigned int devfn,
int cap);
int pci_find_ht_capability(struct pci_dev *dev, int ht_cap);
int pci_find_next_ht_capability(struct pci_dev *dev, int pos, int ht_cap);
struct pci_bus *pci_find_next_bus(const struct pci_bus *from);