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.mayd...@linaro.org> --- hw/virtio/virtio-pci.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index 283401a..845f52f 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -1497,9 +1497,7 @@ 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, -- 1.9.1