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pci: Eliminate redundant PCIDevice::bus pointer

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The bus pointer in PCIDevice is basically redundant with QOM information.
It's always initialized to the qdev_get_parent_bus(), the only difference
is the type.

Therefore this patch eliminates the field, instead creating a pci_get_bus()
helper to do the type mangling to derive it conveniently from the QOM
Device object underneath.

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: Eduardo Habkost <ehabkost@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 19:46:27 +11:00 • committed by Michael S. Tsirkin
parent cdc57472dc
commit fd56e0612b
20 changed files with 102 additions and 92 deletions
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2
hw/net/vmxnet3.c
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@ -2356,7 +2356,7 @@ static void vmxnet3_pci_realize(PCIDevice *pci_dev, Error **errp)
vmxnet3_net_init(s);
if (pci_is_express(pci_dev)) {
if (pci_bus_is_express(pci_dev->bus)) {
if (pci_bus_is_express(pci_get_bus(pci_dev))) {
pcie_endpoint_cap_init(pci_dev, VMXNET3_EXP_EP_OFFSET);
}