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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
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2
hw/pci/pcie_aer.c
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@ -1025,7 +1025,7 @@ static int do_pcie_aer_inject_error(Monitor *mon,
}
details->id = id;
details->root_bus = pci_root_bus_path(dev);
details->bus = pci_bus_num(dev->bus);
details->bus = pci_dev_bus_num(dev);
details->devfn = dev->devfn;
return 0;