[no subject]

[Ian Molton]

This patchset updates the hw_random core to use more efficient buffering.
As an example, the virtio-rng driver is converted to the new API, which fixes
a buffering bug provoked during my work writing a virtio qdev for qemu.

The old API is preserved and all existing drivers should continue to function
without change.

Summary:
 drivers/char/hw_random/core.c       |  120 ++++++++++++++++++++++--------------
 drivers/char/hw_random/virtio-rng.c |   79 ++++++++---------------
 include/linux/hw_random.h           |    9 +-
 3 files changed, 110 insertions(+), 98 deletions(-)

 [PATCH 1/2] hw_random: core updates to allow more efficient drivers
 [PATCH 2/2] virtio: Convert virtio-rng to the new API
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