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From:   Laurent Vivier <lvivier@redhat.com>
To:     linux-kernel@vger.kernel.org
Cc:     Alexander Potapenko <glider@google.com>,
        linux-crypto@vger.kernel.org, Dmitriy Vyukov <dvyukov@google.com>,
        rusty@rustcorp.com.au, amit@kernel.org, akong@redhat.com,
        Herbert Xu <herbert@gondor.apana.org.au>,
        "Michael S . Tsirkin" <mst@redhat.com>,
        Matt Mackall <mpm@selenic.com>,
        virtualization@lists.linux-foundation.org,
        Laurent Vivier <lvivier@redhat.com>
Subject: [PATCH 0/4] hwrng: virtio - add an internal buffer
Date:   Wed, 22 Sep 2021 19:08:59 +0200
Message-Id: <20210922170903.577801-1-lvivier@redhat.com>
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hwrng core uses two buffers that can be mixed in the virtio-rng queue.=0D
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This series fixes the problem by adding an internal buffer in virtio-rng.=0D
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Once the internal buffer is added, we can fix two other problems:=0D
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- to be able to release the driver without waiting the device releases the=
=0D
  buffer=0D
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- actually returns some data when wait=3D0 as we can have some already=0D
  available data=0D
=0D
It also tries to improve the performance by always having a buffer in=0D
the queue of the device.=0D
=0D
Laurent Vivier (4):=0D
  hwrng: virtio - add an internal buffer=0D
  hwrng: virtio - don't wait on cleanup=0D
  hwrng: virtio - don't waste entropy=0D
  hwrng: virtio - always add a pending request=0D
=0D
 drivers/char/hw_random/virtio-rng.c | 84 +++++++++++++++++++++--------=0D
 1 file changed, 63 insertions(+), 21 deletions(-)=0D
=0D
-- =0D
2.31.1=0D
=0D