[Bug 219387] Bluetooth: hci0: Reading supported features failed (-16)

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=219387

--- Comment #11 from alexknoptech@protonmail.com ---
I thought this message came after the firmware file was already loaded:

```
[16265.746551] Bluetooth: hci0: Bootloader revision 0.0 build 2 week 52 2014
[16265.753389] Bluetooth: hci0: Device revision is 5
[16265.753409] Bluetooth: hci0: Secure boot is enabled
[16265.753418] Bluetooth: hci0: OTP lock is enabled
[16265.753426] Bluetooth: hci0: API lock is enabled
[16265.753432] Bluetooth: hci0: Debug lock is disabled
[16265.753439] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[16265.765087] Bluetooth: hci0: Found device firmware: intel/ibt-11-5.sfi
[16267.499721] Bluetooth: hci0: Waiting for firmware download to complete
[16267.500335] Bluetooth: hci0: Firmware loaded in 1694653 usecs
[16267.500403] Bluetooth: hci0: Waiting for device to boot
[16267.512389] Bluetooth: hci0: Device booted in 11752 usecs
[16267.512396] Bluetooth: hci0: Malformed MSFT vendor event: 0x02
[16267.512498] Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-11-5.ddc
[16267.516460] Bluetooth: hci0: Applying Intel DDC parameters completed
[16267.517413] Bluetooth: hci0: Firmware revision 0.0 build 14 week 44 2021
>>>>[16267.519407] Bluetooth: hci0: Reading supported features failed (-16)
[16267.519423] Bluetooth: hci0: Error reading debug features

```

But also I am wondering if this log level can be changed to bt_dev_info if this
is not actually an issue, since the parent function simply returns that:



```
static int btintel_register_devcoredump_support(struct hci_dev *hdev)
{
        struct intel_debug_features features;
        int err;

        FUNCTION CALLED HERE WHICH LOGS AT THE ERROR LEVEL>>>>
        err = btintel_read_debug_features(hdev, &features);
        if (err) {
                bt_dev_info(hdev, "Error reading debug features");
                return err;
        }

        if (!(features.page1[0] & 0x3f)) {
                bt_dev_dbg(hdev, "Telemetry exception format not supported");
                return -EOPNOTSUPP;
        }

        hci_devcd_register(hdev, btintel_coredump, btintel_dmp_hdr, NULL);

        return err;
}

```

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