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virtion-net: Prefer is_power_of_2()

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We have a function that checks if given number is power of two.
We should prefer it instead of expanding the check on our own.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Michal Privoznik 2017-07-13 09:44:38 +02:00 committed by Jason Wang
parent 2484ff0624
commit 5f997fd17b
1 changed files with 1 additions and 1 deletions
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2
hw/net/virtio-net.c
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@ -1942,7 +1942,7 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp)
*/
if (n->net_conf.rx_queue_size < VIRTIO_NET_RX_QUEUE_MIN_SIZE ||
n->net_conf.rx_queue_size > VIRTQUEUE_MAX_SIZE ||
(n->net_conf.rx_queue_size & (n->net_conf.rx_queue_size - 1))) {
!is_power_of_2(n->net_conf.rx_queue_size)) {
error_setg(errp, "Invalid rx_queue_size (= %" PRIu16 "), "
"must be a power of 2 between %d and %d.",
n->net_conf.rx_queue_size, VIRTIO_NET_RX_QUEUE_MIN_SIZE,