On Fri, Dec 07, 2018 at 04:48:42PM +0800, Tiwei Bie wrote:
> Switch to using the _SPLIT_ and _PACKED_ variants of vring flags
> in split ring and packed ring respectively.
> 
> Signed-off-by: Tiwei Bie <tiwei....@intel.com>
> ---
> @@ -502,7 +505,8 @@ static inline int virtqueue_add_split(struct virtqueue 
> *_vq,
>               }
>       }
>       /* Last one doesn't continue. */
> -     desc[prev].flags &= cpu_to_virtio16(_vq->vdev, ~VRING_DESC_F_NEXT);
> +     desc[prev].flags &= cpu_to_virtio16(_vq->vdev,
> +                             (u16)~BIT(VRING_SPLIT_DESC_F_NEXT));
>  
>       if (indirect) {
>               /* Now that the indirect table is filled in, map it. */

I kind of dislike it that this forces use of a cast here.
Kind of makes it more fragile. Let's use a temporary instead?

> -- 
> 2.17.1
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