On Mon, Oct 05, 2020 at 02:19:32PM +0200, Marcel Holtmann wrote:
> Hi Greg,
>
> >>>>>>> This reverts commit 0eee35bdfa3b472cc986ecc6ad76293fdcda59e2 as it
> >>>>>>> breaks all bluetooth connections on my machine.
> >>>>>>>
> >>>>>>> Cc: Marcel Holtmann <marcel@xxxxxxxxxxxx>
> >>>>>>> Cc: Sathish Narsimman <sathish.narasimman@xxxxxxxxx>
> >>>>>>> Fixes: 0eee35bdfa3b ("Bluetooth: Update resolving list when updating whitelist")
> >>>>>>> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> >>>>>>> ---
> >>>>>>> net/bluetooth/hci_request.c | 41 ++-----------------------------------
> >>>>>>> 1 file changed, 2 insertions(+), 39 deletions(-)
> >>>>>>>
> >>>>>>> This has been bugging me for since 5.9-rc1, when all bluetooth devices
> >>>>>>> stopped working on my desktop system. I finally got the time to do
> >>>>>>> bisection today, and it came down to this patch. Reverting it on top of
> >>>>>>> 5.9-rc7 restored bluetooth devices and now my input devices properly
> >>>>>>> work.
> >>>>>>>
> >>>>>>> As it's almost 5.9-final, any chance this can be merged now to fix the
> >>>>>>> issue?
> >>>>>>
> >>>>>> can you be specific what breaks since our guys and I also think the
> >>>>>> ChromeOS guys have been testing these series of patches heavily.
> >>>>>
> >>>>> My bluetooth trackball does not connect at all. With this reverted, it
> >>>>> all "just works".
> >>>>>
> >>>>> Same I think for a Bluetooth headset, can check that again if you really
> >>>>> need me to, but the trackball is reliable here.
> >>>>>
> >>>>>> When you run btmon does it indicate any errors?
> >>>>>
> >>>>> How do I run it and where are the errors displayed?
> >>>>
> >>>> you can do btmon -w trace.log and just let it run like tcdpump.
> >>>
> >>> Ok, attached.
> >>>
> >>> The device is not connecting, and then I open the gnome bluetooth dialog
> >>> and it scans for devices in the area, but does not connect to my
> >>> existing devices at all.
> >>>
> >>> Any ideas?
> >>
> >> the trace file is from -rc7 or from -rc7 with this patch reverted?
> >>
> >> I asked, because I see no hint that anything goes wrong. However I have a suspicion if you bisected it to this patch.
> >>
> >> diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
> >> index e0269192f2e5..94c0daa9f28d 100644
> >> --- a/net/bluetooth/hci_request.c
> >> +++ b/net/bluetooth/hci_request.c
> >> @@ -732,7 +732,7 @@ static int add_to_white_list(struct hci_request *req,
> >> return -1;
> >>
> >> /* White list can not be used with RPAs */
> >> - if (!allow_rpa && !use_ll_privacy(hdev) &&
> >> + if (!allow_rpa &&
> >> hci_find_irk_by_addr(hdev, ¶ms->addr, params->addr_type)) {
> >> return -1;
> >> }
> >> @@ -812,7 +812,7 @@ static u8 update_white_list(struct hci_request *req)
> >> }
> >>
> >> /* White list can not be used with RPAs */
> >> - if (!allow_rpa && !use_ll_privacy(hdev) &&
> >> + if (!allow_rpa &&
> >> hci_find_irk_by_addr(hdev, &b->bdaddr, b->bdaddr_type)) {
> >> return 0x00;
> >> }
> >>
> >>
> >> If you just do the above, does thing work for you again?
> >
> > Corrupted white-space issues aside, yes, it works!
>
> I just pasted it from a different terminal ;)
>
> > I am running 5.9-rc8 with just this change on it and my tracball works
> > just fine.
> >
> >> My suspicion is that the use_ll_privacy check is the wrong one here. It only checks if hardware feature is available, not if it is also enabled.
> >
> > How would one go about enabling such a hardware feature if they wanted
> > to? :)
>
> I need to understand what is going wrong for you. I have a suspicion,
> but first I need to understand what kind of device you have. I hope
> the trace file is enough.
If you need any other information, just let me know, this is a USB
Bluetooth controller from Intel:
$ lsusb | grep Blue
Bus 009 Device 002: ID 8087:0029 Intel Corp. AX200 Bluetooth
And the output of usb-devices for it:
T: Bus=09 Lev=01 Prnt=01 Port=04 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
D: Ver= 2.01 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=8087 ProdID=0029 Rev=00.01
C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I: If#=0x0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I: If#=0x1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
thanks,
greg k-h
