Re: [PATCHv2 6/9] Bluetooth: Add definitions for L2CAP fixed channels

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Hi Mat,

> >> Symbolic fixed channel IDs will be used instead of magic numbers.
> >>
> >> Signed-off-by: Mat Martineau <mathewm@xxxxxxxxxxxxxx>
> >> ---
> >>  include/net/bluetooth/l2cap.h |    4 ++++
> >>  1 files changed, 4 insertions(+), 0 deletions(-)
> >>
> >> diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
> >> index 4f4f318..b8b25f6 100644
> >> --- a/include/net/bluetooth/l2cap.h
> >> +++ b/include/net/bluetooth/l2cap.h
> >> @@ -119,6 +119,10 @@ struct l2cap_conninfo {
> >>  #define L2CAP_FCS_NONE		0x00
> >>  #define L2CAP_FCS_CRC16		0x01
> >>
> >> +/* L2CAP fixed channels */
> >> +#define L2CAP_FC_L2CAP		0x02
> >> +#define L2CAP_FC_A2MP		0x08
> >> +
> >
> > while you are at it, please add the known fixed channels for SMP and LE
> > signaling here. They should be in use already somewhere ;)
> 
> The channel mask wasn't a problem at the recent UPF, since the LE 
> fixed channels are only used on LE connections and the info 
> request/response are only relevant for BR/EDR.  It seems like these LE 
> fixed channel bits should not be set when sending an info response or 
> checked when processing an info response.
> 
> Do you still want me to add them?

I have not looked at all LE patches and this might need some
coordination, but in general yes, I like to have a proper set of fixed
channel value here. A good implementation would check these first. Even
if with LE, the LE link manager connection implies LE support, I rather
have a proper fixed channel mask here.

That said, if you just wanna send a patch that updates this later on, I
am fine with that as well.

Regards

Marcel


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