On 1/11/21 1:16 PM, Jiayu Hu wrote:
> This patch removes unnecessary check and function calls, and it changes
> appropriate types for internal variables and fixes typos.
> 
> Signed-off-by: Jiayu Hu <jiayu...@intel.com>
> Tested-by: Yinan Wang <yinan.w...@intel.com>
> ---
>  lib/librte_vhost/rte_vhost_async.h |  8 ++++----
>  lib/librte_vhost/virtio_net.c      | 16 ++++++++--------
>  2 files changed, 12 insertions(+), 12 deletions(-)
> 
> diff --git a/lib/librte_vhost/rte_vhost_async.h 
> b/lib/librte_vhost/rte_vhost_async.h
> index c73bd7c..03bd558 100644
> --- a/lib/librte_vhost/rte_vhost_async.h
> +++ b/lib/librte_vhost/rte_vhost_async.h
> @@ -112,7 +112,7 @@ struct rte_vhost_async_features {
>  };
>  
>  /**
> - * register a async channel for vhost
> + * register an async channel for vhost
>   *
>   * @param vid
>   *  vhost device id async channel to be attached to
> @@ -147,8 +147,8 @@ __rte_experimental
>  int rte_vhost_async_channel_unregister(int vid, uint16_t queue_id);
>  
>  /**
> - * This function submit enqueue data to async engine. This function has
> - * no guranttee to the transfer completion upon return. Applications
> + * This function submits enqueue data to async engine. This function has
> + * no guarantee to the transfer completion upon return. Applications
>   * should poll transfer status by rte_vhost_poll_enqueue_completed()
>   *
>   * @param vid
> @@ -167,7 +167,7 @@ uint16_t rte_vhost_submit_enqueue_burst(int vid, uint16_t 
> queue_id,
>               struct rte_mbuf **pkts, uint16_t count);
>  
>  /**
> - * This function check async completion status for a specific vhost
> + * This function checks async completion status for a specific vhost
>   * device queue. Packets which finish copying (enqueue) operation
>   * will be returned in an array.
>   *
> diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c
> index fec08b2..0b63940 100644
> --- a/lib/librte_vhost/virtio_net.c
> +++ b/lib/librte_vhost/virtio_net.c
> @@ -1130,8 +1130,11 @@ async_mbuf_to_desc(struct virtio_net *dev, struct 
> vhost_virtqueue *vq,
>       }
>  
>  out:
> -     async_fill_iter(src_it, tlen, src_iovec, tvec_idx);
> -     async_fill_iter(dst_it, tlen, dst_iovec, tvec_idx);
> +     if (tlen) {
> +             async_fill_iter(src_it, tlen, src_iovec, tvec_idx);
> +             async_fill_iter(dst_it, tlen, dst_iovec, tvec_idx);
> +     } else
> +             src_it->count = 0;

Minor comment, you need braces for the 'else' as there are braces for
the 'if'.


I will fix while applying.

Thanks,
Maxime

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