Re: [PATCHv3 04/18] Bluetooth: Lookup channel structure based on DCID

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Hi Mat,

On Thu, Oct 18, 2012 at 10:58:36AM -0700, Mat Martineau wrote:
> Processing a move channel request involves getting the channel
> structure using the destination channel ID.  Previous code could only
> look up using the source channel ID.
> 
> Signed-off-by: Mat Martineau <mathewm@xxxxxxxxxxxxxx>
> Acked-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>

Acked-by: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx> 

> ---
>  net/bluetooth/l2cap_core.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
> index ec2b4d9..e826420 100644
> --- a/net/bluetooth/l2cap_core.c
> +++ b/net/bluetooth/l2cap_core.c
> @@ -100,6 +100,22 @@ static struct l2cap_chan *l2cap_get_chan_by_scid(struct l2cap_conn *conn,
>  	return c;
>  }
>  
> +/* Find channel with given DCID.
> + * Returns locked channel. */
> +static struct l2cap_chan *l2cap_get_chan_by_dcid(struct l2cap_conn *conn,
> +						 u16 cid)
> +{
> +	struct l2cap_chan *c;
> +
> +	mutex_lock(&conn->chan_lock);
> +	c = __l2cap_get_chan_by_dcid(conn, cid);
> +	if (c)
> +		l2cap_chan_lock(c);
> +	mutex_unlock(&conn->chan_lock);
> +
> +	return c;
> +}
> +
>  static struct l2cap_chan *__l2cap_get_chan_by_ident(struct l2cap_conn *conn,
>  						    u8 ident)
>  {
> -- 
> 1.7.12.3
> 
> --
> Mat Martineau
> 
> Employee of Qualcomm Innovation Center, Inc.
> The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
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