Re: [PATCH 0/4] hwrng: virtio - add an internal buffer

[Laurent Vivier <lvivier@redhat.com>]

On 22/09/2021 19:08, Laurent Vivier wrote:
> hwrng core uses two buffers that can be mixed in the virtio-rng queue.
> 
> This series fixes the problem by adding an internal buffer in virtio-rng.
> 
> Once the internal buffer is added, we can fix two other problems:
> 
> - to be able to release the driver without waiting the device releases the
>    buffer
> 
> - actually returns some data when wait=0 as we can have some already
>    available data
> 
> It also tries to improve the performance by always having a buffer in
> the queue of the device.
> 
> Laurent Vivier (4):
>    hwrng: virtio - add an internal buffer
>    hwrng: virtio - don't wait on cleanup
>    hwrng: virtio - don't waste entropy
>    hwrng: virtio - always add a pending request
> 
>   drivers/char/hw_random/virtio-rng.c | 84 +++++++++++++++++++++--------
>   1 file changed, 63 insertions(+), 21 deletions(-)
> 

Any comment?

Do we need a v2?

Thanks,
Laurent