linux-kernel - Re: [PATCH] vhost: remove avail_event arg from vhost_update_avail

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Date:   Fri, 14 Jan 2022 14:12:04 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     Stefano Garzarella <sgarzare@...hat.com>
Cc:     virtualization <virtualization@...ts.linux-foundation.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        kvm <kvm@...r.kernel.org>, "Michael S. Tsirkin" <mst@...hat.com>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH] vhost: remove avail_event arg from vhost_update_avail_event()

On Thu, Jan 13, 2022 at 10:11 PM Stefano Garzarella <sgarzare@...hat.com> wrote:
>
> In vhost_update_avail_event() we never used the `avail_event` argument,
> since its introduction in commit 2723feaa8ec6 ("vhost: set log when
> updating used flags or avail event").
>
> Let's remove it to clean up the code.
>
> Signed-off-by: Stefano Garzarella <sgarzare@...hat.com>

Acked-by: Jason Wang <jasowang@...hat.com>

> ---
>  drivers/vhost/vhost.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
> index 59edb5a1ffe2..ee171e663a18 100644
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -1981,7 +1981,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
>         return 0;
>  }
>
> -static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
> +static int vhost_update_avail_event(struct vhost_virtqueue *vq)
>  {
>         if (vhost_put_avail_event(vq))
>                 return -EFAULT;
> @@ -2527,7 +2527,7 @@ bool vhost_enable_notify(struct vhost_dev *dev, struct vhost_virtqueue *vq)
>                         return false;
>                 }
>         } else {
> -               r = vhost_update_avail_event(vq, vq->avail_idx);
> +               r = vhost_update_avail_event(vq);
>                 if (r) {
>                         vq_err(vq, "Failed to update avail event index at %p: %d\n",
>                                vhost_avail_event(vq), r);
> --
> 2.31.1
>