Re: [PATCH v3 3/4] Bluetooth: Introduce HCI_CONN_FLAG_DEVICE_PRIVACY device flag

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Hi Marcel,

On Wed, Nov 24, 2021 at 7:27 AM Marcel Holtmann <marcel@xxxxxxxxxxxx> wrote:
>
> Hi Luiz,
>
> > This introduces HCI_CONN_FLAG_DEVICE_PRIVACY which can be used by
> > userspace to indicate to the controller to use Device Privacy Mode to a
> > specific device.
> >
> > Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
> > ---
> > include/net/bluetooth/hci_core.h |  1 +
> > net/bluetooth/mgmt.c             | 12 ++++++++++++
> > 2 files changed, 13 insertions(+)
> >
> > diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
> > index fc93a1907c90..9c94d1c49b25 100644
> > --- a/include/net/bluetooth/hci_core.h
> > +++ b/include/net/bluetooth/hci_core.h
> > @@ -153,6 +153,7 @@ struct bdaddr_list_with_irk {
> >
> > enum hci_conn_flags {
> >       HCI_CONN_FLAG_REMOTE_WAKEUP,
> > +     HCI_CONN_FLAG_DEVICE_PRIVACY,
>
> coming this now, I wonder if we better call them FLAG_REMOTE_WAKEUP_SUPPORT and FLAG_DEVICE_PRIVACY_SUPPORT. If I am not mistaken, then these are for indicating support for it.

These flags are used in multiple places:

hci_dev->conn_flags
hci_conn_params->conn_flags
bdaddr_list_with_flags->flags

Which is one of the reason I made them all use  DECLARE_BITMAP(flags,
__HCI_CONN_NUM_FLAGS) so they are in sync, the use of them in
hci_dev->conn_flags means they are supported but in the other 2 it
means they are in use, so I prefer leave as they are.

-- 
Luiz Augusto von Dentz



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