diff options
| author | David Gibson <david@gibson.dropbear.id.au> | 2017-11-29 19:46:27 +1100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-12-05 19:13:45 +0200 |
| commit | fd56e0612b6454a282fa6a953fdb09281a98c589 (patch) | |
| tree | 28a829abaa964f8ed4834c2ed10441e2878ad2c8 /hw/s390x | |
| parent | cdc57472dcc2ddc440545bde26791a11b42232b6 (diff) | |
pci: Eliminate redundant PCIDevice::bus pointer
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>
Diffstat (limited to 'hw/s390x')
| -rw-r--r-- | hw/s390x/s390-pci-bus.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index f64ad5943e..7d9c65e719 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -680,10 +680,10 @@ static void s390_pcihost_hot_plug(HotplugHandler *hotplug_dev, s->bus_no += 1; pci_default_write_config(pdev, PCI_SECONDARY_BUS, s->bus_no, 1); do { - pdev = pdev->bus->parent_dev; + pdev = pci_get_bus(pdev)->parent_dev; pci_default_write_config(pdev, PCI_SUBORDINATE_BUS, s->bus_no, 1); - } while (pdev->bus && pci_bus_num(pdev->bus)); + } while (pci_get_bus(pdev) && pci_dev_bus_num(pdev)); } } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { pdev = PCI_DEVICE(dev); @@ -713,7 +713,7 @@ static void s390_pcihost_hot_plug(HotplugHandler *hotplug_dev, } pbdev->pdev = pdev; - pbdev->iommu = s390_pci_get_iommu(s, pdev->bus, pdev->devfn); + pbdev->iommu = s390_pci_get_iommu(s, pci_get_bus(pdev), pdev->devfn); pbdev->iommu->pbdev = pbdev; pbdev->state = ZPCI_FS_DISABLED; @@ -807,7 +807,7 @@ static void s390_pcihost_hot_unplug(HotplugHandler *hotplug_dev, s390_pci_generate_plug_event(HP_EVENT_STANDBY_TO_RESERVED, pbdev->fh, pbdev->fid); - bus = pci_dev->bus; + bus = pci_get_bus(pci_dev); devfn = pci_dev->devfn; object_unparent(OBJECT(pci_dev)); s390_pci_msix_free(pbdev); |