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vring: make vring_enable_notification return void

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Make the API more similar to the regular virtqueue API.  This will
help when modifying the code to not use vring.c anymore.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Paolo Bonzini 2016-02-14 18:17:05 +01:00 • committed by Michael S. Tsirkin
parent ef0716df7f
commit 8b1fe1cedf
3 changed files with 4 additions and 4 deletions
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3
hw/virtio/dataplane/vring.c
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@ -175,7 +175,7 @@ void vring_disable_notification(VirtIODevice *vdev, Vring *vring)
*
* Return true if the vring is empty, false if there are more requests.
*/
bool vring_enable_notification(VirtIODevice *vdev, Vring *vring)
void vring_enable_notification(VirtIODevice *vdev, Vring *vring)
{
if (virtio_vdev_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX)) {
vring_avail_event(&vring->vr) = vring->vr.avail->idx;
@ -183,7 +183,6 @@ bool vring_enable_notification(VirtIODevice *vdev, Vring *vring)
vring_clear_used_flags(vdev, vring, VRING_USED_F_NO_NOTIFY);
}
smp_mb(); /* ensure update is seen before reading avail_idx */
return !vring_more_avail(vdev, vring);
}
/* This is stolen from linux/drivers/vhost/vhost.c:vhost_notify() */