linux-kernel - Re: [PATCH] Bluetooth: Use hci_conn_hash_lookup

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Date:	Mon, 2 May 2016 21:33:25 +0200 (CEST)
From:	Julia Lawall <julia.lawall@...6.fr>
To:	Johan Hedberg <johan.hedberg@...il.com>
cc:	Julia Lawall <Julia.Lawall@...6.fr>,
	Marcel Holtmann <marcel@...tmann.org>,
	kernel-janitors@...r.kernel.org,
	Gustavo Padovan <gustavo@...ovan.org>,
	"David S. Miller" <davem@...emloft.net>,
	linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Bluetooth: Use hci_conn_hash_lookup_le



On Mon, 2 May 2016, Johan Hedberg wrote:

> Hi,
> 
> On Fri, Apr 29, 2016, Julia Lawall wrote:
> > --- a/net/bluetooth/mgmt.c
> > +++ b/net/bluetooth/mgmt.c
> > @@ -4773,7 +4773,8 @@ static int get_conn_info(struct sock *sk, struct hci_dev *hdev, void *data,
> >  		conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
> >  					       &cp->addr.bdaddr);
> >  	else
> > -		conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
> > +		conn = hci_conn_hash_lookup_le(hdev, &cp->addr.bdaddr,
> > +					       cp->addr.type);
> 
> I don't think is is correct. There are two possible domains for address
> types: the user space-facing interface that has three values: BR/EDR, LE
> public & LE random, and the internal one which maps to HCI that has two
> values: random or public. You'd need to convert from the former to the
> latter when making the lookup call, i.e:
> 
> 	conn = hci_conn_hash_lookup_le(hdev, &cp->addr.bdaddr,
> 				       le_addr_type(cp->addr.type));

OK, thanks for the feedback.

julia

> 
> 
> Johan
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