diff mbox series

[v2] Bluetooth: Add new quirk for broken extended create connection for ATS2851

Message ID 20230425163120.1059724-1-raul.cheleguini@gmail.com
State New
Headers show
Series [v2] Bluetooth: Add new quirk for broken extended create connection for ATS2851 | expand

Commit Message

Raul Cheleguini April 25, 2023, 4:31 p.m. UTC
The controller based on ATS2851 advertises support for the "LE Extended
Create Connection" command, but it does not actually implement it. This
issue is blocking the pairing process from beginning.

To resolve this, add the quirk HCI_QUIRK_BROKEN_EXT_CREATE_CONN.
This will avoid the unsupported command and instead send a regular "LE
Create Connection" command.

< HCI Command: LE Extended Create Conn.. (0x08|0x0043) plen 26
        Filter policy: Accept list is not used (0x00)
        Own address type: Public (0x00)
        Peer address type: Random (0x01)
        Peer address: DD:5E:B9:FE:49:3D (Static)
        Initiating PHYs: 0x01
        Entry 0: LE 1M
          Scan interval: 60.000 msec (0x0060)
          Scan window: 60.000 msec (0x0060)
          Min connection interval: 30.00 msec (0x0018)
          Max connection interval: 50.00 msec (0x0028)
          Connection latency: 0 (0x0000)
          Supervision timeout: 420 msec (0x002a)
          Min connection length: 0.000 msec (0x0000)
          Max connection length: 0.000 msec (0x0000)
> HCI Event: Command Status (0x0f) plen 4
      LE Extended Create Connection (0x08|0x0043) ncmd 1
        Status: Unknown HCI Command (0x01)

Signed-off-by: Raul Cheleguini <raul.cheleguini@gmail.com>
---
V1 -> V2: Grammar fix in commit message.

- Note that this patch depends on the RPA timeout quirk sent via [1].
  [1]. https://marc.info/?l=linux-bluetooth&m=167957918920723&w=2
  
 drivers/bluetooth/btusb.c        | 1 +
 include/net/bluetooth/hci.h      | 7 +++++++
 include/net/bluetooth/hci_core.h | 3 ++-
 net/bluetooth/hci_sync.c         | 4 ++++
 4 files changed, 14 insertions(+), 1 deletion(-)

Comments

bluez.test.bot@gmail.com April 25, 2023, 5:02 p.m. UTC | #1
This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=743095

---Test result---

Test Summary:
CheckPatch                    FAIL      1.44 seconds
GitLint                       FAIL      0.56 seconds
SubjectPrefix                 PASS      0.10 seconds
BuildKernel                   PASS      32.96 seconds
CheckAllWarning               PASS      36.71 seconds
CheckSparse                   PASS      41.33 seconds
CheckSmatch                   PASS      111.31 seconds
BuildKernel32                 PASS      32.35 seconds
TestRunnerSetup               PASS      455.78 seconds
TestRunner_l2cap-tester       PASS      17.19 seconds
TestRunner_iso-tester         PASS      21.70 seconds
TestRunner_bnep-tester        PASS      5.64 seconds
TestRunner_mgmt-tester        PASS      116.88 seconds
TestRunner_rfcomm-tester      PASS      9.04 seconds
TestRunner_sco-tester         PASS      8.31 seconds
TestRunner_ioctl-tester       PASS      9.73 seconds
TestRunner_mesh-tester        PASS      7.06 seconds
TestRunner_smp-tester         PASS      8.29 seconds
TestRunner_userchan-tester    PASS      6.00 seconds
IncrementalBuild              PASS      29.70 seconds

Details
##############################
Test: CheckPatch - FAIL
Desc: Run checkpatch.pl script
Output:
[v2] Bluetooth: Add new quirk for broken extended create connection for ATS2851
WARNING: Use lore.kernel.org archive links when possible - see https://lore.kernel.org/lists.html
#113: 
  [1]. https://marc.info/?l=linux-bluetooth&m=167957918920723&w=2

WARNING: quoted string split across lines
#173: FILE: net/bluetooth/hci_sync.c:4537:
 			 "HCI LE Set Random Private Address Timeout command is "
+			 "advertised, but not supported."),

total: 0 errors, 2 warnings, 0 checks, 45 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

/github/workspace/src/src/13223516.patch has style problems, please review.

NOTE: Ignored message types: UNKNOWN_COMMIT_ID

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.


##############################
Test: GitLint - FAIL
Desc: Run gitlint
Output:
[v2] Bluetooth: Add new quirk for broken extended create connection for ATS2851

WARNING: I3 - ignore-body-lines: gitlint will be switching from using Python regex 'match' (match beginning) to 'search' (match anywhere) semantics. Please review your ignore-body-lines.regex option accordingly. To remove this warning, set general.regex-style-search=True. More details: https://jorisroovers.github.io/gitlint/configuration/#regex-style-search
36: B2 Line has trailing whitespace: "  "


---
Regards,
Linux Bluetooth
Markus Uhr Aug. 11, 2024, 9:05 p.m. UTC | #2
On Tue, 25 Apr 2023 13:31:20 -0300
Raul Cheleguini <raul.cheleguini@gmail.com> wrote:

> The controller based on ATS2851 advertises support for the "LE
> Extended Create Connection" command, but it does not actually
> implement it. This issue is blocking the pairing process from
> beginning.
> 
> To resolve this, add the quirk HCI_QUIRK_BROKEN_EXT_CREATE_CONN.
> This will avoid the unsupported command and instead send a regular "LE
> Create Connection" command.

I'm interested in getting this patch merged. Was this just forgotten, or
is there still work to be done before it can be merged?

Best regards,
Markus Uhr
Luiz Augusto von Dentz Aug. 12, 2024, 3:17 p.m. UTC | #3
Hi Markus,

On Sun, Aug 11, 2024 at 5:05 PM Markus Uhr <uhrmar@gmail.com> wrote:
>
> On Tue, 25 Apr 2023 13:31:20 -0300
> Raul Cheleguini <raul.cheleguini@gmail.com> wrote:
>
> > The controller based on ATS2851 advertises support for the "LE
> > Extended Create Connection" command, but it does not actually
> > implement it. This issue is blocking the pairing process from
> > beginning.
> >
> > To resolve this, add the quirk HCI_QUIRK_BROKEN_EXT_CREATE_CONN.
> > This will avoid the unsupported command and instead send a regular "LE
> > Create Connection" command.
>
> I'm interested in getting this patch merged. Was this just forgotten, or
> is there still work to be done before it can be merged?

It might need to be resend since it is no longer listed in patchwork.

> Best regards,
> Markus Uhr
Markus Uhr Aug. 26, 2024, 8:21 p.m. UTC | #4
On Mon, 12 Aug 2024 11:17:20 -0400
Luiz Augusto von Dentz <luiz.dentz@gmail.com> wrote:

> On Sun, Aug 11, 2024 at 5:05 PM Markus Uhr <uhrmar@gmail.com> wrote:
> >
> > I'm interested in getting this patch merged. Was this just
> > forgotten, or is there still work to be done before it can be
> > merged?  
> 
> It might need to be resend since it is no longer listed in patchwork.

This is a resubmission of the patch, rebased on current bluetooth-next
master.

In addition to the original change, this revision also disables
'enhanced connection complete' when the quirk is active. This
eliminates an ugly kernel error log

   Bluetooth: hci0: Opcode 0x200e failed: -16

when the controller connects successfully.


Best,
Markus

-- >8 --
Subject: [PATCH v3] Bluetooth: Add new quirk for broken extended create connection for ATS2851

The controller based on ATS2851 advertises support for the "LE Extended
Create Connection" command, but it does not actually implement it. This
issue is blocking the pairing process from beginning.

To resolve this, add the quirk HCI_QUIRK_BROKEN_EXT_CREATE_CONN.
This will avoid the unsupported command and instead send a regular "LE
Create Connection" command.

< HCI Command: LE Extended Create Conn.. (0x08|0x0043) plen 26
        Filter policy: Accept list is not used (0x00)
        Own address type: Public (0x00)
        Peer address type: Random (0x01)
        Peer address: DD:5E:B9:FE:49:3D (Static)
        Initiating PHYs: 0x01
        Entry 0: LE 1M
          Scan interval: 60.000 msec (0x0060)
          Scan window: 60.000 msec (0x0060)
          Min connection interval: 30.00 msec (0x0018)
          Max connection interval: 50.00 msec (0x0028)
          Connection latency: 0 (0x0000)
          Supervision timeout: 420 msec (0x002a)
          Min connection length: 0.000 msec (0x0000)
          Max connection length: 0.000 msec (0x0000)
> HCI Event: Command Status (0x0f) plen 4
      LE Extended Create Connection (0x08|0x0043) ncmd 1
        Status: Unknown HCI Command (0x01)

Signed-off-by: Markus Uhr <uhrmar@gmail.com>
---
 drivers/bluetooth/btusb.c        | 1 +
 include/net/bluetooth/hci.h      | 7 +++++++
 include/net/bluetooth/hci_core.h | 9 ++++++---
 net/bluetooth/hci_sync.c         | 4 ++++
 4 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 36a869a57..31f39e68a 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -3883,6 +3883,7 @@ static int btusb_probe(struct usb_interface *intf,
 		set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
 		set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
 		set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
+		set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks);
 		set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
 	}
 
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index bab1e3d74..4c942db4a 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -328,6 +328,13 @@ enum {
 	 */
 	HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE,
 
+	/*
+	 * When this quirk is set, the HCI_OP_LE_EXT_CREATE_CONN command is
+	 * disabled. This is required for the Actions Semiconductor ATS2851
+	 * based controllers, which erroneously claims to support it.
+	 */
+	HCI_QUIRK_BROKEN_EXT_CREATE_CONN,
+
 	/*
 	 * When this quirk is set, the reserved bits of Primary/Secondary_PHY
 	 * inside the LE Extended Advertising Report events are discarded.
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index e449dba69..a7a03ab13 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1876,7 +1876,8 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
 			   !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
 
 /* Use ext create connection if command is supported */
-#define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
+#define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \
+			   !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &(dev)->quirks))
 
 /* Extended advertising support */
 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
@@ -1890,8 +1891,10 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
  * C24: Mandatory if the LE Controller supports Connection State and either
  * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
  */
-#define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
-					 ext_adv_capable(dev))
+#define use_enhanced_conn_complete(dev) ((ll_privacy_capable(dev) || \
+					 ext_adv_capable(dev)) && \
+					 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, \
+						 &(dev)->quirks))
 
 /* Periodic advertising support */
 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index e79cd40bd..160f260a7 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -4800,6 +4800,9 @@ static const struct {
 	HCI_QUIRK_BROKEN(SET_RPA_TIMEOUT,
 			 "HCI LE Set Random Private Address Timeout command is "
 			 "advertised, but not supported."),
+	HCI_QUIRK_BROKEN(EXT_CREATE_CONN,
+			 "HCI LE Extended Create Connection command is "
+			 "advertised, but not supported."),
 	HCI_QUIRK_BROKEN(LE_CODED,
 			 "HCI LE Coded PHY feature bit is set, "
 			 "but its usage is not supported.")
@@ -6427,6 +6430,7 @@ static int hci_le_create_conn_sync(struct hci_dev *hdev, void *data)
 	if (err)
 		goto done;
 
+	/* Send command LE Extended Create Connection if supported */
 	if (use_ext_conn(hdev)) {
 		err = hci_le_ext_create_conn_sync(hdev, conn, own_addr_type);
 		goto done;
Danil Pylaev Sept. 24, 2024, 3:55 p.m. UTC | #5
Hi!
Any news? I'm also interested in getting this patch into the kernel.

27.08.2024 3:21, Markus Uhr пишет:
> On Mon, 12 Aug 2024 11:17:20 -0400
> Luiz Augusto von Dentz <luiz.dentz@gmail.com> wrote:
>
>> On Sun, Aug 11, 2024 at 5:05 PM Markus Uhr <uhrmar@gmail.com> wrote:
>>> I'm interested in getting this patch merged. Was this just
>>> forgotten, or is there still work to be done before it can be
>>> merged?
>> It might need to be resend since it is no longer listed in patchwork.
> This is a resubmission of the patch, rebased on current bluetooth-next
> master.
>
> In addition to the original change, this revision also disables
> 'enhanced connection complete' when the quirk is active. This
> eliminates an ugly kernel error log
>
>     Bluetooth: hci0: Opcode 0x200e failed: -16
>
> when the controller connects successfully.
>
>
> Best,
> Markus
>
> -- >8 --
> Subject: [PATCH v3] Bluetooth: Add new quirk for broken extended create connection for ATS2851
>
> The controller based on ATS2851 advertises support for the "LE Extended
> Create Connection" command, but it does not actually implement it. This
> issue is blocking the pairing process from beginning.
>
> To resolve this, add the quirk HCI_QUIRK_BROKEN_EXT_CREATE_CONN.
> This will avoid the unsupported command and instead send a regular "LE
> Create Connection" command.
>
> < HCI Command: LE Extended Create Conn.. (0x08|0x0043) plen 26
>          Filter policy: Accept list is not used (0x00)
>          Own address type: Public (0x00)
>          Peer address type: Random (0x01)
>          Peer address: DD:5E:B9:FE:49:3D (Static)
>          Initiating PHYs: 0x01
>          Entry 0: LE 1M
>            Scan interval: 60.000 msec (0x0060)
>            Scan window: 60.000 msec (0x0060)
>            Min connection interval: 30.00 msec (0x0018)
>            Max connection interval: 50.00 msec (0x0028)
>            Connection latency: 0 (0x0000)
>            Supervision timeout: 420 msec (0x002a)
>            Min connection length: 0.000 msec (0x0000)
>            Max connection length: 0.000 msec (0x0000)
>> HCI Event: Command Status (0x0f) plen 4
>        LE Extended Create Connection (0x08|0x0043) ncmd 1
>          Status: Unknown HCI Command (0x01)
>
> Signed-off-by: Markus Uhr <uhrmar@gmail.com>
> ---
>   drivers/bluetooth/btusb.c        | 1 +
>   include/net/bluetooth/hci.h      | 7 +++++++
>   include/net/bluetooth/hci_core.h | 9 ++++++---
>   net/bluetooth/hci_sync.c         | 4 ++++
>   4 files changed, 18 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
> index 36a869a57..31f39e68a 100644
> --- a/drivers/bluetooth/btusb.c
> +++ b/drivers/bluetooth/btusb.c
> @@ -3883,6 +3883,7 @@ static int btusb_probe(struct usb_interface *intf,
>   		set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
>   		set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
>   		set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
> +		set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks);
>   		set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
>   	}
>   
> diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
> index bab1e3d74..4c942db4a 100644
> --- a/include/net/bluetooth/hci.h
> +++ b/include/net/bluetooth/hci.h
> @@ -328,6 +328,13 @@ enum {
>   	 */
>   	HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE,
>   
> +	/*
> +	 * When this quirk is set, the HCI_OP_LE_EXT_CREATE_CONN command is
> +	 * disabled. This is required for the Actions Semiconductor ATS2851
> +	 * based controllers, which erroneously claims to support it.
> +	 */
> +	HCI_QUIRK_BROKEN_EXT_CREATE_CONN,
> +
>   	/*
>   	 * When this quirk is set, the reserved bits of Primary/Secondary_PHY
>   	 * inside the LE Extended Advertising Report events are discarded.
> diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
> index e449dba69..a7a03ab13 100644
> --- a/include/net/bluetooth/hci_core.h
> +++ b/include/net/bluetooth/hci_core.h
> @@ -1876,7 +1876,8 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
>   			   !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
>   
>   /* Use ext create connection if command is supported */
> -#define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
> +#define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \
> +			   !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &(dev)->quirks))
>   
>   /* Extended advertising support */
>   #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
> @@ -1890,8 +1891,10 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
>    * C24: Mandatory if the LE Controller supports Connection State and either
>    * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
>    */
> -#define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
> -					 ext_adv_capable(dev))
> +#define use_enhanced_conn_complete(dev) ((ll_privacy_capable(dev) || \
> +					 ext_adv_capable(dev)) && \
> +					 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, \
> +						 &(dev)->quirks))
>   
>   /* Periodic advertising support */
>   #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
> diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
> index e79cd40bd..160f260a7 100644
> --- a/net/bluetooth/hci_sync.c
> +++ b/net/bluetooth/hci_sync.c
> @@ -4800,6 +4800,9 @@ static const struct {
>   	HCI_QUIRK_BROKEN(SET_RPA_TIMEOUT,
>   			 "HCI LE Set Random Private Address Timeout command is "
>   			 "advertised, but not supported."),
> +	HCI_QUIRK_BROKEN(EXT_CREATE_CONN,
> +			 "HCI LE Extended Create Connection command is "
> +			 "advertised, but not supported."),
>   	HCI_QUIRK_BROKEN(LE_CODED,
>   			 "HCI LE Coded PHY feature bit is set, "
>   			 "but its usage is not supported.")
> @@ -6427,6 +6430,7 @@ static int hci_le_create_conn_sync(struct hci_dev *hdev, void *data)
>   	if (err)
>   		goto done;
>   
> +	/* Send command LE Extended Create Connection if supported */
>   	if (use_ext_conn(hdev)) {
>   		err = hci_le_ext_create_conn_sync(hdev, conn, own_addr_type);
>   		goto done;
diff mbox series

Patch

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 3a3a966419af..8656ac491f13 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -4107,6 +4107,7 @@  static int btusb_probe(struct usb_interface *intf,
 		set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
 		set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
 		set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
+		set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks);
 	}
 
 	if (!reset)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 07df96c47ef4..d5d0e44bf0b6 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -309,6 +309,13 @@  enum {
 	 * to support it.
 	 */
 	HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT,
+
+	/*
+	 * When this quirk is set, the HCI_OP_LE_EXT_CREATE_CONN command is
+	 * disabled. This is required for the Actions Semiconductor ATS2851
+	 * based controllers, which erroneously claims to support it.
+	 */
+	HCI_QUIRK_BROKEN_EXT_CREATE_CONN,
 };
 
 /* HCI device flags */
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 53d3328c2b8b..952b0021dc25 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1695,7 +1695,8 @@  void hci_conn_del_sysfs(struct hci_conn *conn);
 			   !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
 
 /* Use ext create connection if command is supported */
-#define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
+#define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \
+			   !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &(dev)->quirks))
 
 /* Extended advertising support */
 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index 003ec0e34fcc..d49cfd1ea418 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -4534,6 +4534,9 @@  static const struct {
 			 "advertised, but not supported."),
 	HCI_QUIRK_BROKEN(SET_RPA_TIMEOUT,
 			 "HCI LE Set Random Private Address Timeout command is "
+			 "advertised, but not supported."),
+	HCI_QUIRK_BROKEN(EXT_CREATE_CONN,
+			 "HCI LE Extended Create Connection command is "
 			 "advertised, but not supported.")
 };
 
@@ -6071,6 +6074,7 @@  int hci_le_create_conn_sync(struct hci_dev *hdev, struct hci_conn *conn)
 	if (err)
 		goto done;
 
+	/* Send command LE Extended Create Connection if supported */
 	if (use_ext_conn(hdev)) {
 		err = hci_le_ext_create_conn_sync(hdev, conn, own_addr_type);
 		goto done;