Re: [PATCH 3/6] Bluetooth: 6lowpan: Use netif APIs to flow control

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Hi Luiz,


On Tue, 2017-04-11 at 22:21 +0300, Luiz Augusto von Dentz wrote:
> From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
> 
> Rely on netif_wake_queue and netif_stop_queue to flow control when
> transmit resources are unavailable.
> 
> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
> ---
>  net/bluetooth/6lowpan.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c
> index 22bd936..dc7fda3 100644
> --- a/net/bluetooth/6lowpan.c
> +++ b/net/bluetooth/6lowpan.c
> @@ -867,12 +867,28 @@ static struct sk_buff *chan_alloc_skb_cb(struct
> l2cap_chan *chan,
>  
>  static void chan_suspend_cb(struct l2cap_chan *chan)
>  {
> +	struct lowpan_btle_dev *dev;
> +
>  	BT_DBG("chan %p suspend", chan);
> +
> +	dev = lookup_dev(chan->conn);
> +	if (!dev || !dev->netdev)
> +		return;
> +
> +	netif_stop_queue(dev->netdev);
>  }
>  
>  static void chan_resume_cb(struct l2cap_chan *chan)
>  {
> +	struct lowpan_btle_dev *dev;
> +
>  	BT_DBG("chan %p resume", chan);
> +
> +	dev = lookup_dev(chan->conn);
> +	if (!dev || !dev->netdev)
> +		return;
> +
> +	netif_wake_queue(dev->netdev);
>  }
>  
>  static long chan_get_sndtimeo_cb(struct l2cap_chan *chan)


Acked-by: Jukka Rissanen <jukka.rissanen@xxxxxxxxxxxxxxx>


Cheers,
Jukka


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