[dpdk-dev] [PATCH v2] vhost: fix corner case for enqueue operation

[Maxime Coquelin]

On 09/17/2018 05:54 AM, Jiayu Hu wrote:
> When perform enqueue operations on the split and packed ring,
s/perform/performing/
s/ring/rings/
> if the reserved buffer length from the descriptor table execeeds
> 65535, the returned length by fill_vec_buf_split/_packed() is
> overflowed. This patch is to avoid this corner case.
s/overflowed/overflows/
> 
> Fixes: f689586b ("vhost: shadow used ring update")
> Fixes: fd68b473 ("vhost: use buffer vectors in dequeue path")
> Fixes: 2f3225a7 ("vhost: add vector filling support for packed ring")
> Fixes: 37f5e79a ("vhost: add shadow used ring support for packed rings")
> Fixes: a922401f ("vhost: add Rx support for packed ring")
> Fixes: ae999ce4 ("vhost: add Tx support for packed ring")
> 
> Signed-off-by: Jiayu Hu <jiayu.hu at intel.com>
> ---
>   lib/librte_vhost/virtio_net.c | 20 +++++++++++---------
>   1 file changed, 11 insertions(+), 9 deletions(-)
> 

Other than that, the patch looks good to me. Thanks for fixing it.

Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>

Maxime