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pci: Add pci_dev_bus_num() helper

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A fair proportion of the users of pci_bus_num() want to get the bus
number on a specific device, so first have to look up the bus from the
device then call it.  This adds a helper to do that (since we're going
to make looking up the bus slightly more verbose).

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
This commit is contained in:
David Gibson 2017-11-29 19:46:26 +11:00 • committed by Michael S. Tsirkin
parent 791bf3c8f0
commit cdc57472dc
7 changed files with 16 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

8
include/hw/xen/xen_common.h
View file

@ -542,10 +542,10 @@ static inline void xen_map_pcidev(domid_t dom,
return;
}
trace_xen_map_pcidev(ioservid, pci_bus_num(pci_dev->bus),
trace_xen_map_pcidev(ioservid, pci_dev_bus_num(pci_dev),
PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn));
xendevicemodel_map_pcidev_to_ioreq_server(xen_dmod, dom, ioservid, 0,
pci_bus_num(pci_dev->bus),
pci_dev_bus_num(pci_dev),
PCI_SLOT(pci_dev->devfn),
PCI_FUNC(pci_dev->devfn));
}
@ -558,10 +558,10 @@ static inline void xen_unmap_pcidev(domid_t dom,
return;
}
trace_xen_unmap_pcidev(ioservid, pci_bus_num(pci_dev->bus),
trace_xen_unmap_pcidev(ioservid, pci_dev_bus_num(pci_dev),
PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn));
xendevicemodel_unmap_pcidev_from_ioreq_server(xen_dmod, dom, ioservid, 0,
pci_bus_num(pci_dev->bus),
pci_dev_bus_num(pci_dev),
PCI_SLOT(pci_dev->devfn),
PCI_FUNC(pci_dev->devfn));
}