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virtio-rng: remove extra request for entropy

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If we got fewer bytes from the backend than requested, don't poke the
backend for more bytes; the guest will ask for more (or if the guest has
already asked for more, the backend knows about it via handle_input()).

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Amit Shah 2012-11-21 11:21:19 +05:30 committed by Anthony Liguori
parent 1441703965
commit 4621c1768e
1 changed files with 0 additions and 7 deletions
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7
hw/virtio-rng.c
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@ -80,13 +80,6 @@ static void chr_read(void *opaque, const void *buf, size_t size)
virtqueue_push(vrng->vq, &elem, len); virtqueue_push(vrng->vq, &elem, len);
} }
virtio_notify(&vrng->vdev, vrng->vq); virtio_notify(&vrng->vdev, vrng->vq);
/*
* Lastly, if we had multiple elems queued by the guest, and we
* didn't have enough data to fill them all, indicate we want more
* data.
*/
virtio_rng_process(vrng);
} }
static void virtio_rng_process(VirtIORNG *vrng) static void virtio_rng_process(VirtIORNG *vrng)