Re: [PATCH] ALSA: virtio: remove duplicate check if queue is broken

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On Wed, 24 Jan 2024 at 07:17, Li RongQing <lirongqing@xxxxxxxxx> wrote:
>
> virtqueue_enable_cb() will call virtqueue_poll() which will check if
> queue is broken at beginning, so remove the virtqueue_is_broken() call
>
> Signed-off-by: Li RongQing <lirongqing@xxxxxxxxx>
> ---
>  sound/virtio/virtio_card.c    | 2 --
>  sound/virtio/virtio_ctl_msg.c | 2 --
>  sound/virtio/virtio_pcm_msg.c | 2 --
>  3 files changed, 6 deletions(-)

Reviewed-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>

>
> diff --git a/sound/virtio/virtio_card.c b/sound/virtio/virtio_card.c
> index e2847c0..b158c3c 100644
> --- a/sound/virtio/virtio_card.c
> +++ b/sound/virtio/virtio_card.c
> @@ -91,8 +91,6 @@ static void virtsnd_event_notify_cb(struct virtqueue *vqueue)
>                         virtsnd_event_dispatch(snd, event);
>                         virtsnd_event_send(vqueue, event, true, GFP_ATOMIC);
>                 }
> -               if (unlikely(virtqueue_is_broken(vqueue)))
> -                       break;
>         } while (!virtqueue_enable_cb(vqueue));
>         spin_unlock_irqrestore(&queue->lock, flags);
>  }
> diff --git a/sound/virtio/virtio_ctl_msg.c b/sound/virtio/virtio_ctl_msg.c
> index 18dc5ac..9dabea0 100644
> --- a/sound/virtio/virtio_ctl_msg.c
> +++ b/sound/virtio/virtio_ctl_msg.c
> @@ -303,8 +303,6 @@ void virtsnd_ctl_notify_cb(struct virtqueue *vqueue)
>                 virtqueue_disable_cb(vqueue);
>                 while ((msg = virtqueue_get_buf(vqueue, &length)))
>                         virtsnd_ctl_msg_complete(msg);
> -               if (unlikely(virtqueue_is_broken(vqueue)))
> -                       break;
>         } while (!virtqueue_enable_cb(vqueue));
>         spin_unlock_irqrestore(&queue->lock, flags);
>  }
> diff --git a/sound/virtio/virtio_pcm_msg.c b/sound/virtio/virtio_pcm_msg.c
> index 542446c..8c32efa 100644
> --- a/sound/virtio/virtio_pcm_msg.c
> +++ b/sound/virtio/virtio_pcm_msg.c
> @@ -358,8 +358,6 @@ static inline void virtsnd_pcm_notify_cb(struct virtio_snd_queue *queue)
>                 virtqueue_disable_cb(queue->vqueue);
>                 while ((msg = virtqueue_get_buf(queue->vqueue, &written_bytes)))
>                         virtsnd_pcm_msg_complete(msg, written_bytes);
> -               if (unlikely(virtqueue_is_broken(queue->vqueue)))
> -                       break;
>         } while (!virtqueue_enable_cb(queue->vqueue));
>         spin_unlock_irqrestore(&queue->lock, flags);
>  }
> --
> 2.9.4
>
>



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