virtio_ring: switch to use unsigned int for virtqueue_poll_packed()

Switch to use unsigned int for virtqueue_poll_packed() to match
virtqueue_poll() and virtqueue_poll_split() and to ease the
abstraction of the virtqueue ops.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20251225042608.32350-13-jasowang@redhat.com>
1 file changed