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From:   =?UTF-8?Q?Erik_Dob=C3=A1k?= <erik.dobak@gmail.com>
Date:   Sun, 1 Oct 2023 08:23:46 +0200
Message-ID: <CAH7-e5vbmXfNBPNRTUSuPit-ACxtM-4UwuJjXVjs9a5YRT1ibw@mail.gmail.com>
Subject: bluetooth issues since kernel 6.4 - not discovering other bt devices
 - /linux/drivers/bluetooth/btusb.c
To:     linux-bluetooth@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

Hello!

I bought a new laptop fujitsu life book and everything is going fine
on artix just the bt makes trouble:

/var/log/error.log
Sep 30 18:43:48 nexus bluetoothd[2266]:
src/adapter.c:reset_adv_monito
rs_complete() Failed to reset Adv
Monitors: Failed (0x03)
Sep 30 18:43:48 nexus bluetoothd[2266]: Failed to clear UUIDs: Failed (0x03)
Sep 30 18:43:48 nexus bluetoothd[2266]: Failed to add UUID: Failed (0x03)
Sep 30 18:43:48 nexus bluetoothd[2266]: Failed to add UUID: Failed (0x03)

i searched a bit the webs and found a new commit at kernel org that
does do the trouble:
https://bugs.archlinux.org/task/78980

follow the linkeys inside the commits there or read this one:

---------------before------------------------------------
/* interface numbers are hardcoded in the spec */
        if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
                if (!(id->driver_info & BTUSB_IFNUM_2))
                        return -ENODEV;
                if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
                        return -ENODEV;
        }
-----------after----------------------------------------------------
if ((id->driver_info & BTUSB_IFNUM_2) &&
    (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
    (intf->cur_altsetting->desc.bInterfaceNumber != 2))
return -ENODEV;
--------------------------------------------------------

the dude just hooked up 3 conditions in a row with && where before it
was 2 conditions in 1 condition. + the comment was removed.


please reconsider this commit.

Yours

E