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hw/virtio/virtio-pci: Use pow2ceil() rather than hand-calculation

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Use the utility function pow2ceil() for rounding up to the next
largest power of 2, rather than inline calculation.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1437741192-20955-3-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2015-07-24 13:33:08 +01:00
parent 9bff5d8135
commit 1d0148fe6c
1 changed files with 1 additions and 3 deletions
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4
hw/virtio/virtio-pci.c
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@ -1505,9 +1505,7 @@ static void virtio_pci_device_plugged(DeviceState *d, Error **errp)
if (legacy) {
size = VIRTIO_PCI_REGION_SIZE(&proxy->pci_dev)
+ virtio_bus_get_vdev_config_len(bus);
if (size & (size - 1)) {
size = 1 << qemu_fls(size);
}
size = pow2ceil(size);
memory_region_init_io(&proxy->bar, OBJECT(proxy),
&virtio_pci_config_ops,