netdev - Re: [PATCH net v1 2/2] virtio_net: Close queue pairs using helper function

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Date:   Mon, 1 May 2023 10:14:55 -0400
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Feng Liu <feliu@...dia.com>
Cc:     virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, bpf@...r.kernel.org,
        Jason Wang <jasowang@...hat.com>,
        Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
        William Tu <witu@...dia.com>, Parav Pandit <parav@...dia.com>
Subject: Re: [PATCH net v1 2/2] virtio_net: Close queue pairs using helper
 function

On Fri, Apr 28, 2023 at 06:43:46PM -0400, Feng Liu wrote:
> Use newly introduced helper function that exactly does the same of
> closing the queue pairs.
> 
> Signed-off-by: Feng Liu <feliu@...dia.com>
> Reviewed-by: William Tu <witu@...dia.com>
> Reviewed-by: Parav Pandit <parav@...dia.com>

Acked-by: Michael S. Tsirkin <mst@...hat.com>

> ---
>  drivers/net/virtio_net.c | 7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> index fc6ee833a09f..5cd78e154d14 100644
> --- a/drivers/net/virtio_net.c
> +++ b/drivers/net/virtio_net.c
> @@ -2319,11 +2319,8 @@ static int virtnet_close(struct net_device *dev)
>  	/* Make sure refill_work doesn't re-enable napi! */
>  	cancel_delayed_work_sync(&vi->refill);
>  
> -	for (i = 0; i < vi->max_queue_pairs; i++) {
> -		virtnet_napi_tx_disable(&vi->sq[i].napi);
> -		napi_disable(&vi->rq[i].napi);
> -		xdp_rxq_info_unreg(&vi->rq[i].xdp_rxq);
> -	}
> +	for (i = 0; i < vi->max_queue_pairs; i++)
> +		virtnet_disable_qp(vi, i);
>  
>  	return 0;
>  }
> -- 
> 2.37.1 (Apple Git-137.1)