From: Amos Kong <akong@redhat.com>
Date: Wed, 14 May 2014 01:03:46 +0000 (+0930)
Subject: virtio-rng: support multiple virtio-rng devices
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~46^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=08e53fbdb85c0f6f45c0f7c1ea3defc1752a95ce;p=pandora-kernel.git

virtio-rng: support multiple virtio-rng devices

Current hwrng core supports to register multiple hwrng devices,
and there is only one device really works in the same time.
QEMU alsu supports to have multiple virtio-rng backends.

This patch changes virtio-rng driver to support multiple
virtio-rng devices.

]# cat /sys/class/misc/hw_random/rng_available
virtio_rng.0 virtio_rng.1
]# cat /sys/class/misc/hw_random/rng_current
virtio_rng.0
]# echo -n virtio_rng.1 > /sys/class/misc/hw_random/rng_current
]# dd if=/dev/hwrng of=/dev/null

Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---

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