hw_random core can ask for initial randomness after a slight delay after probe() finishes, and we can contribute to system randomness at that point. Tell the hw_random core by setting the HWRNG_DELAY_READ_AT_INIT flag. CC: Kees Cook <keescook@xxxxxxxxxxxx> CC: Jason Cooper <jason@xxxxxxxxxxxxxx> CC: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Amit Shah <amit.shah@xxxxxxxxxx> --- drivers/char/hw_random/virtio-rng.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c index d8ffebd..f53f1e8 100644 --- a/drivers/char/hw_random/virtio-rng.c +++ b/drivers/char/hw_random/virtio-rng.c @@ -123,6 +123,7 @@ static int probe_common(struct virtio_device *vdev) .cleanup = virtio_cleanup, .priv = (unsigned long)vi, .name = vi->name, + .flags = HWRNG_DELAY_READ_AT_INIT, }; vdev->priv = vi; -- 1.9.3 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
