[RFC PATCH 2/3] virtio: rng: only accept delayed early randomness requests

From: Amit Shah
Date: Mon Jul 14 2014 - 00:36:35 EST

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

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,
vdev->priv = vi;


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