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Merge branches 'pci/hotplug', 'pci/pci_is_bridge' and 'pci/virtualization' into next

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* pci/hotplug:
  PCI: cpqphp: Fix possible null pointer dereference
  NVMe: Implement PCIe reset notification callback
  PCI: Notify driver before and after device reset

* pci/pci_is_bridge:
  pcmcia: Use pci_is_bridge() to simplify code
  PCI: pciehp: Use pci_is_bridge() to simplify code
  PCI: acpiphp: Use pci_is_bridge() to simplify code
  PCI: cpcihp: Use pci_is_bridge() to simplify code
  PCI: shpchp: Use pci_is_bridge() to simplify code
  PCI: rpaphp: Use pci_is_bridge() to simplify code
  sparc/PCI: Use pci_is_bridge() to simplify code
  powerpc/PCI: Use pci_is_bridge() to simplify code
  ia64/PCI: Use pci_is_bridge() to simplify code
  x86/PCI: Use pci_is_bridge() to simplify code
  PCI: Use pci_is_bridge() to simplify code
  PCI: Add new pci_is_bridge() interface
  PCI: Rename pci_is_bridge() to pci_has_subordinate()

* pci/virtualization:
  PCI: Introduce new device binding path using pci_dev.driver_override

Conflicts:
	drivers/pci/pci-sysfs.c
This commit is contained in:
Bjorn Helgaas 2014-05-28 16:21:07 -06:00
commit d1a2523d2a
22 changed files with 154 additions and 45 deletions
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17
include/linux/pci.h
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@ -365,6 +365,7 @@ struct pci_dev {
#endif
phys_addr_t rom; /* Physical address of ROM if it's not from the BAR */
size_t romlen; /* Length of ROM if it's not from the BAR */
char *driver_override; /* Driver name to force a match */
};
static inline struct pci_dev *pci_physfn(struct pci_dev *dev)
@ -477,6 +478,19 @@ static inline bool pci_is_root_bus(struct pci_bus *pbus)
return !(pbus->parent);
}
/**
* pci_is_bridge - check if the PCI device is a bridge
* @dev: PCI device
*
* Return true if the PCI device is bridge whether it has subordinate
* or not.
*/
static inline bool pci_is_bridge(struct pci_dev *dev)
{
return dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
dev->hdr_type == PCI_HEADER_TYPE_CARDBUS;
}
static inline struct pci_dev *pci_upstream_bridge(struct pci_dev *dev)
{
dev = pci_physfn(dev);
@ -603,6 +617,9 @@ struct pci_error_handlers {
/* PCI slot has been reset */
pci_ers_result_t (*slot_reset)(struct pci_dev *dev);
/* PCI function reset prepare or completed */
void (*reset_notify)(struct pci_dev *dev, bool prepare);
/* Device driver may resume normal operations */
void (*resume)(struct pci_dev *dev);
};