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* [PATCH v2] Bluetooth: btmtk: add event filter to filter specific event
@ 2026-04-07 11:48 Chris Lu
  2026-04-07 12:30 ` [v2] " bluez.test.bot
                   ` (2 more replies)
  0 siblings, 3 replies; 5+ messages in thread
From: Chris Lu @ 2026-04-07 11:48 UTC (permalink / raw)
  To: Marcel Holtmann, Johan Hedberg, Luiz Von Dentz
  Cc: Sean Wang, Will Lee, SS Wu, Steve Lee, linux-bluetooth,
	linux-kernel, linux-mediatek, Chris Lu

Add an event filter to filter event with specific opcode to prevent BT
stack from receiving unexpected event.

Event with opcode 0xfc5d is generated when MediaTek's Bluetooth enable
firmware logs and is not expected to be sent to userspace.

Signed-off-by: Chris Lu <chris.lu@mediatek.com>
---
v1 -> v2: update commit message
---
 drivers/bluetooth/btmtk.c | 22 ++++++++++++++++++++++
 drivers/bluetooth/btmtk.h |  7 +++++++
 drivers/bluetooth/btusb.c |  2 ++
 3 files changed, 31 insertions(+)

diff --git a/drivers/bluetooth/btmtk.c b/drivers/bluetooth/btmtk.c
index 55516b4602db..302d6ddf9062 100644
--- a/drivers/bluetooth/btmtk.c
+++ b/drivers/bluetooth/btmtk.c
@@ -1503,6 +1503,28 @@ int btmtk_usb_shutdown(struct hci_dev *hdev)
 	return 0;
 }
 EXPORT_SYMBOL_GPL(btmtk_usb_shutdown);
+
+int btmtk_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_event_hdr *hdr = (void *)skb->data;
+
+	if (hdr->evt == HCI_EV_CMD_COMPLETE) {
+		struct hci_ev_cmd_complete *ec;
+		u16 opcode;
+
+		ec = (void *)(skb->data + HCI_EVENT_HDR_SIZE);
+		opcode = __le16_to_cpu(ec->opcode);
+
+		/* Filter vendor opcode */
+		if (opcode == 0xfc5d) {
+			kfree_skb(skb);
+			return 0;
+		}
+	}
+
+	return hci_recv_frame(hdev, skb);
+}
+EXPORT_SYMBOL_GPL(btmtk_recv_event);
 #endif
 
 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
diff --git a/drivers/bluetooth/btmtk.h b/drivers/bluetooth/btmtk.h
index adaf385626ee..08b73927c8f3 100644
--- a/drivers/bluetooth/btmtk.h
+++ b/drivers/bluetooth/btmtk.h
@@ -218,6 +218,8 @@ int btmtk_usb_suspend(struct hci_dev *hdev);
 int btmtk_usb_setup(struct hci_dev *hdev);
 
 int btmtk_usb_shutdown(struct hci_dev *hdev);
+
+int btmtk_recv_event(struct hci_dev *hdev, struct sk_buff *skb);
 #else
 
 static inline int btmtk_set_bdaddr(struct hci_dev *hdev,
@@ -296,4 +298,9 @@ static inline int btmtk_usb_shutdown(struct hci_dev *hdev)
 {
 	return -EOPNOTSUPP;
 }
+
+static inline int btmtk_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	return -EOPNOTSUPP;
+}
 #endif
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index f9d515ee9124..daf8a387e660 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -4150,6 +4150,8 @@ static int btusb_probe(struct usb_interface *intf,
 	} else if (id->driver_info & BTUSB_MEDIATEK) {
 		/* Allocate extra space for Mediatek device */
 		priv_size += sizeof(struct btmtk_data);
+
+		data->recv_event = btmtk_recv_event;
 	}
 
 	data->recv_acl = hci_recv_frame;
-- 
2.45.2


^ permalink raw reply related	[flat|nested] 5+ messages in thread

* RE: [v2] Bluetooth: btmtk: add event filter to filter specific event
  2026-04-07 11:48 [PATCH v2] Bluetooth: btmtk: add event filter to filter specific event Chris Lu
@ 2026-04-07 12:30 ` bluez.test.bot
  2026-04-07 14:54 ` [PATCH v2] " Luiz Augusto von Dentz
  2026-04-09 20:21 ` [v2] " bluez.test.bot
  2 siblings, 0 replies; 5+ messages in thread
From: bluez.test.bot @ 2026-04-07 12:30 UTC (permalink / raw)
  To: linux-bluetooth, chris.lu

[-- Attachment #1: Type: text/plain, Size: 2593 bytes --]

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=1078124

---Test result---

Test Summary:
CheckPatch                    PENDING   0.37 seconds
GitLint                       PENDING   0.27 seconds
SubjectPrefix                 PASS      0.12 seconds
BuildKernel                   PASS      26.90 seconds
CheckAllWarning               PASS      29.05 seconds
CheckSparse                   PASS      28.90 seconds
BuildKernel32                 PASS      25.66 seconds
TestRunnerSetup               PASS      573.77 seconds
TestRunner_l2cap-tester       PASS      28.14 seconds
TestRunner_iso-tester         PASS      44.53 seconds
TestRunner_bnep-tester        PASS      6.49 seconds
TestRunner_mgmt-tester        FAIL      116.25 seconds
TestRunner_rfcomm-tester      PASS      9.49 seconds
TestRunner_sco-tester         FAIL      14.51 seconds
TestRunner_ioctl-tester       PASS      10.54 seconds
TestRunner_mesh-tester        FAIL      12.59 seconds
TestRunner_smp-tester         PASS      8.66 seconds
TestRunner_userchan-tester    PASS      6.76 seconds
IncrementalBuild              PENDING   1.00 seconds

Details
##############################
Test: CheckPatch - PENDING
Desc: Run checkpatch.pl script
Output:

##############################
Test: GitLint - PENDING
Desc: Run gitlint
Output:

##############################
Test: TestRunner_mgmt-tester - FAIL
Desc: Run mgmt-tester with test-runner
Output:
Total: 494, Passed: 489 (99.0%), Failed: 1, Not Run: 4

Failed Test Cases
Read Exp Feature - Success                           Failed       0.106 seconds
##############################
Test: TestRunner_sco-tester - FAIL
Desc: Run sco-tester with test-runner
Output:
WARNING: possible circular locking dependency detected
BUG: sleeping function called from invalid context at net/core/sock.c:3782
Total: 30, Passed: 30 (100.0%), Failed: 0, Not Run: 0
##############################
Test: TestRunner_mesh-tester - FAIL
Desc: Run mesh-tester with test-runner
Output:
Total: 10, Passed: 8 (80.0%), Failed: 2, Not Run: 0

Failed Test Cases
Mesh - Send cancel - 1                               Timed out    2.619 seconds
Mesh - Send cancel - 2                               Timed out    1.993 seconds
##############################
Test: IncrementalBuild - PENDING
Desc: Incremental build with the patches in the series
Output:



---
Regards,
Linux Bluetooth


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH v2] Bluetooth: btmtk: add event filter to filter specific event
  2026-04-07 11:48 [PATCH v2] Bluetooth: btmtk: add event filter to filter specific event Chris Lu
  2026-04-07 12:30 ` [v2] " bluez.test.bot
@ 2026-04-07 14:54 ` Luiz Augusto von Dentz
  2026-04-08 11:28   ` Chris Lu (陸稚泓)
  2026-04-09 20:21 ` [v2] " bluez.test.bot
  2 siblings, 1 reply; 5+ messages in thread
From: Luiz Augusto von Dentz @ 2026-04-07 14:54 UTC (permalink / raw)
  To: Chris Lu
  Cc: Marcel Holtmann, Johan Hedberg, Sean Wang, Will Lee, SS Wu,
	Steve Lee, linux-bluetooth, linux-kernel, linux-mediatek

Hi Chris,

On Tue, Apr 7, 2026 at 7:48 AM Chris Lu <chris.lu@mediatek.com> wrote:
>
> Add an event filter to filter event with specific opcode to prevent BT
> stack from receiving unexpected event.
>
> Event with opcode 0xfc5d is generated when MediaTek's Bluetooth enable
> firmware logs and is not expected to be sent to userspace.
>
> Signed-off-by: Chris Lu <chris.lu@mediatek.com>
> ---
> v1 -> v2: update commit message
> ---
>  drivers/bluetooth/btmtk.c | 22 ++++++++++++++++++++++
>  drivers/bluetooth/btmtk.h |  7 +++++++
>  drivers/bluetooth/btusb.c |  2 ++
>  3 files changed, 31 insertions(+)
>
> diff --git a/drivers/bluetooth/btmtk.c b/drivers/bluetooth/btmtk.c
> index 55516b4602db..302d6ddf9062 100644
> --- a/drivers/bluetooth/btmtk.c
> +++ b/drivers/bluetooth/btmtk.c
> @@ -1503,6 +1503,28 @@ int btmtk_usb_shutdown(struct hci_dev *hdev)
>         return 0;
>  }
>  EXPORT_SYMBOL_GPL(btmtk_usb_shutdown);
> +
> +int btmtk_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
> +{
> +       struct hci_event_hdr *hdr = (void *)skb->data;
> +
> +       if (hdr->evt == HCI_EV_CMD_COMPLETE) {
> +               struct hci_ev_cmd_complete *ec;
> +               u16 opcode;
> +
> +               ec = (void *)(skb->data + HCI_EVENT_HDR_SIZE);
> +               opcode = __le16_to_cpu(ec->opcode);
> +
> +               /* Filter vendor opcode */
> +               if (opcode == 0xfc5d) {
> +                       kfree_skb(skb);
> +                       return 0;
> +               }
> +       }
> +
> +       return hci_recv_frame(hdev, skb);
> +}
> +EXPORT_SYMBOL_GPL(btmtk_recv_event);
>  #endif
>
>  MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
> diff --git a/drivers/bluetooth/btmtk.h b/drivers/bluetooth/btmtk.h
> index adaf385626ee..08b73927c8f3 100644
> --- a/drivers/bluetooth/btmtk.h
> +++ b/drivers/bluetooth/btmtk.h
> @@ -218,6 +218,8 @@ int btmtk_usb_suspend(struct hci_dev *hdev);
>  int btmtk_usb_setup(struct hci_dev *hdev);
>
>  int btmtk_usb_shutdown(struct hci_dev *hdev);
> +
> +int btmtk_recv_event(struct hci_dev *hdev, struct sk_buff *skb);
>  #else
>
>  static inline int btmtk_set_bdaddr(struct hci_dev *hdev,
> @@ -296,4 +298,9 @@ static inline int btmtk_usb_shutdown(struct hci_dev *hdev)
>  {
>         return -EOPNOTSUPP;
>  }
> +
> +static inline int btmtk_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
> +{
> +       return -EOPNOTSUPP;
> +}
>  #endif
> diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
> index f9d515ee9124..daf8a387e660 100644
> --- a/drivers/bluetooth/btusb.c
> +++ b/drivers/bluetooth/btusb.c
> @@ -4150,6 +4150,8 @@ static int btusb_probe(struct usb_interface *intf,
>         } else if (id->driver_info & BTUSB_MEDIATEK) {
>                 /* Allocate extra space for Mediatek device */
>                 priv_size += sizeof(struct btmtk_data);
> +
> +               data->recv_event = btmtk_recv_event;
>         }
>
>         data->recv_acl = hci_recv_frame;
> --
> 2.45.2


https://sashiko.dev/#/patchset/20260407114851.3087886-1-chris.lu%40mediatek.com

Both issues seem valid to me. That said, I wonder if it wouldn't have
been better to allow drivers to register with its own struct
hci_ev/struct hci_cc tables, that way the driver can extend event
parsing rather than intercepting it and performing custom parsing
which can lead to bugs like the ones mentioned above.


-- 
Luiz Augusto von Dentz

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH v2] Bluetooth: btmtk: add event filter to filter specific event
  2026-04-07 14:54 ` [PATCH v2] " Luiz Augusto von Dentz
@ 2026-04-08 11:28   ` Chris Lu (陸稚泓)
  0 siblings, 0 replies; 5+ messages in thread
From: Chris Lu (陸稚泓) @ 2026-04-08 11:28 UTC (permalink / raw)
  To: luiz.dentz@gmail.com
  Cc: Will-CY Lee (李政穎),
	Steve Lee (李視誠), marcel@holtmann.org,
	SS Wu (巫憲欣), linux-kernel@vger.kernel.org,
	johan.hedberg@gmail.com, Sean Wang,
	linux-bluetooth@vger.kernel.org,
	linux-mediatek@lists.infradead.org

Hi Luiz,

Thanks for your reply.

On Tue, 2026-04-07 at 10:54 -0400, Luiz Augusto von Dentz wrote:
> Hi Chris,
> 
> On Tue, Apr 7, 2026 at 7:48 AM Chris Lu <chris.lu@mediatek.com>
> wrote:
> > 
> > Add an event filter to filter event with specific opcode to prevent
> > BT
> > stack from receiving unexpected event.
> > 
> > Event with opcode 0xfc5d is generated when MediaTek's Bluetooth
> > enable
> > firmware logs and is not expected to be sent to userspace.
> > 
> > Signed-off-by: Chris Lu <chris.lu@mediatek.com>
> > ---
> > v1 -> v2: update commit message
> > ---
> >  drivers/bluetooth/btmtk.c | 22 ++++++++++++++++++++++
> >  drivers/bluetooth/btmtk.h |  7 +++++++
> >  drivers/bluetooth/btusb.c |  2 ++
> >  3 files changed, 31 insertions(+)
> > 
> > diff --git a/drivers/bluetooth/btmtk.c b/drivers/bluetooth/btmtk.c
> > index 55516b4602db..302d6ddf9062 100644
> > --- a/drivers/bluetooth/btmtk.c
> > +++ b/drivers/bluetooth/btmtk.c
> > @@ -1503,6 +1503,28 @@ int btmtk_usb_shutdown(struct hci_dev *hdev)
> >         return 0;
> >  }
> >  EXPORT_SYMBOL_GPL(btmtk_usb_shutdown);
> > +
> > +int btmtk_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
> > +{
> > +       struct hci_event_hdr *hdr = (void *)skb->data;
> > +
> > +       if (hdr->evt == HCI_EV_CMD_COMPLETE) {
> > +               struct hci_ev_cmd_complete *ec;
> > +               u16 opcode;
> > +
> > +               ec = (void *)(skb->data + HCI_EVENT_HDR_SIZE);
> > +               opcode = __le16_to_cpu(ec->opcode);
> > +
> > +               /* Filter vendor opcode */
> > +               if (opcode == 0xfc5d) {
> > +                       kfree_skb(skb);
> > +                       return 0;
> > +               }
> > +       }
> > +
> > +       return hci_recv_frame(hdev, skb);
> > +}
> > +EXPORT_SYMBOL_GPL(btmtk_recv_event);
> >  #endif
> > 
> >  MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
> > diff --git a/drivers/bluetooth/btmtk.h b/drivers/bluetooth/btmtk.h
> > index adaf385626ee..08b73927c8f3 100644
> > --- a/drivers/bluetooth/btmtk.h
> > +++ b/drivers/bluetooth/btmtk.h
> > @@ -218,6 +218,8 @@ int btmtk_usb_suspend(struct hci_dev *hdev);
> >  int btmtk_usb_setup(struct hci_dev *hdev);
> > 
> >  int btmtk_usb_shutdown(struct hci_dev *hdev);
> > +
> > +int btmtk_recv_event(struct hci_dev *hdev, struct sk_buff *skb);
> >  #else
> > 
> >  static inline int btmtk_set_bdaddr(struct hci_dev *hdev,
> > @@ -296,4 +298,9 @@ static inline int btmtk_usb_shutdown(struct
> > hci_dev *hdev)
> >  {
> >         return -EOPNOTSUPP;
> >  }
> > +
> > +static inline int btmtk_recv_event(struct hci_dev *hdev, struct
> > sk_buff *skb)
> > +{
> > +       return -EOPNOTSUPP;
> > +}
> >  #endif
> > diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
> > index f9d515ee9124..daf8a387e660 100644
> > --- a/drivers/bluetooth/btusb.c
> > +++ b/drivers/bluetooth/btusb.c
> > @@ -4150,6 +4150,8 @@ static int btusb_probe(struct usb_interface
> > *intf,
> >         } else if (id->driver_info & BTUSB_MEDIATEK) {
> >                 /* Allocate extra space for Mediatek device */
> >                 priv_size += sizeof(struct btmtk_data);
> > +
> > +               data->recv_event = btmtk_recv_event;
> >         }
> > 
> >         data->recv_acl = hci_recv_frame;
> > --
> > 2.45.2
> 
> 
> https://urldefense.com/v3/__https://sashiko.dev/*/patchset/20260407114851.3087886-1-chris.lu*40mediatek.com__;IyU!!CTRNKA9wMg0ARbw!j4c9a9a8N0yC-uPVxzP3piQN8Ga4aEG1gE7ZMtTFeFYFzkNiq08Zd_XHi9ImhiQTSWTjKP-XoRutGQU0yKk$
>  
> 
> Both issues seem valid to me. That said, I wonder if it wouldn't have
> been better to allow drivers to register with its own struct
> hci_ev/struct hci_cc tables, that way the driver can extend event
> parsing rather than intercepting it and performing custom parsing
> which can lead to bugs like the ones mentioned above.
> 
> 

For the approach you mentioned, I think it's a better long-term
direction but it seems that this mechanism hasn't been implement yet,
or is there already existing an structure/API in kernel that I can
refer to?

So far I refer to the methods used by other vendor to attach the event
filter in driver setup stage. I'll send a v3 addressing the review
comment in above website after doing some verification locally.

Thanks,
Chris Lu

^ permalink raw reply	[flat|nested] 5+ messages in thread

* RE: [v2] Bluetooth: btmtk: add event filter to filter specific event
  2026-04-07 11:48 [PATCH v2] Bluetooth: btmtk: add event filter to filter specific event Chris Lu
  2026-04-07 12:30 ` [v2] " bluez.test.bot
  2026-04-07 14:54 ` [PATCH v2] " Luiz Augusto von Dentz
@ 2026-04-09 20:21 ` bluez.test.bot
  2 siblings, 0 replies; 5+ messages in thread
From: bluez.test.bot @ 2026-04-09 20:21 UTC (permalink / raw)
  To: linux-bluetooth, chris.lu

[-- Attachment #1: Type: text/plain, Size: 6877 bytes --]

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=1078124

---Test result---

Test Summary:
CheckPatch                    PENDING   0.46 seconds
GitLint                       PENDING   0.29 seconds
SubjectPrefix                 PASS      0.13 seconds
BuildKernel                   PASS      26.38 seconds
CheckAllWarning               PASS      28.79 seconds
CheckSparse                   PASS      27.55 seconds
BuildKernel32                 PASS      25.63 seconds
TestRunnerSetup               PASS      566.39 seconds
TestRunner_l2cap-tester       PASS      28.51 seconds
TestRunner_iso-tester         PASS      44.08 seconds
TestRunner_bnep-tester        PASS      6.51 seconds
TestRunner_mgmt-tester        FAIL      115.17 seconds
TestRunner_rfcomm-tester      PASS      9.44 seconds
TestRunner_sco-tester         FAIL      14.45 seconds
TestRunner_ioctl-tester       PASS      10.43 seconds
TestRunner_mesh-tester        FAIL      12.67 seconds
TestRunner_smp-tester         PASS      8.74 seconds
TestRunner_userchan-tester    PASS      6.89 seconds
TestRunner_6lowpan-tester     FAIL      8.75 seconds
IncrementalBuild              PENDING   0.27 seconds

Details
##############################
Test: CheckPatch - PENDING
Desc: Run checkpatch.pl script
Output:

##############################
Test: GitLint - PENDING
Desc: Run gitlint
Output:

##############################
Test: TestRunner_mgmt-tester - FAIL
Desc: Run mgmt-tester with test-runner
Output:
Total: 494, Passed: 489 (99.0%), Failed: 1, Not Run: 4

Failed Test Cases
Read Exp Feature - Success                           Failed       0.108 seconds
##############################
Test: TestRunner_sco-tester - FAIL
Desc: Run sco-tester with test-runner
Output:
WARNING: possible circular locking dependency detected
7.0.0-rc2-g5ca9da91b469 #1 Not tainted
------------------------------------------------------
kworker/u5:2/117 is trying to acquire lock:
ffff888002415240 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_connect_cfm+0x358/0x8d0

but task is already holding lock:
ffff888002602220 (&conn->lock){+.+.}-{3:3}, at: sco_connect_cfm+0x22d/0x8d0

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&conn->lock){+.+.}-{3:3}:
       lock_acquire+0xf7/0x2c0
       _raw_spin_lock+0x2a/0x40
       sco_sock_connect+0x4d7/0x1280
       __sys_connect+0x1a3/0x260
       __x64_sys_connect+0x6e/0xb0
       do_syscall_64+0xa0/0x570
       entry_SYSCALL_64_after_hwframe+0x74/0x7c

-> #0 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}:
       check_prev_add+0xe9/0xc70
       __lock_acquire+0x1457/0x1df0
       lock_acquire+0xf7/0x2c0
       lock_sock_nested+0x36/0xd0
       sco_connect_cfm+0x358/0x8d0
       hci_sync_conn_complete_evt+0x3d3/0x8e0
       hci_event_packet+0x74f/0xb10
       hci_rx_work+0x398/0xd00
       process_scheduled_works+0xb16/0x1ac0
       worker_thread+0x4ff/0xba0
       kthread+0x368/0x490
       ret_from_fork+0x498/0x7e0
       ret_from_fork_asm+0x19/0x30

other info that might help us debug this:

...
BUG: sleeping function called from invalid context at net/core/sock.c:3782
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 117, name: kworker/u5:2
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
CPU: 0 UID: 0 PID: 117 Comm: kworker/u5:2 Not tainted 7.0.0-rc2-g5ca9da91b469 #1 PREEMPT(lazy) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-1ubuntu1.1 04/01/2014
Workqueue: hci0 hci_rx_work
Call Trace:
 <TASK>
 dump_stack_lvl+0x49/0x60
 __might_resched+0x2ea/0x500
 lock_sock_nested+0x47/0xd0
 ? sco_connect_cfm+0x358/0x8d0
 sco_connect_cfm+0x358/0x8d0
 ? hci_debugfs_create_conn+0x190/0x210
 ? __pfx_sco_connect_cfm+0x10/0x10
 hci_sync_conn_complete_evt+0x3d3/0x8e0
 hci_event_packet+0x74f/0xb10
 ? __pfx_hci_sync_conn_complete_evt+0x10/0x10
 ? __pfx_hci_event_packet+0x10/0x10
 ? mark_held_locks+0x49/0x80
 ? lockdep_hardirqs_on_prepare+0xd4/0x180
 ? _raw_spin_unlock_irqrestore+0x2c/0x50
 hci_rx_work+0x398/0xd00
 process_scheduled_works+0xb16/0x1ac0
 ? __pfx_process_scheduled_works+0x10/0x10
 ? lock_acquire+0xf7/0x2c0
 ? lock_is_held_type+0x9b/0x110
 ? __pfx_hci_rx_work+0x10/0x10
 worker_thread+0x4ff/0xba0
 ? _raw_spin_unlock_irqrestore+0x2c/0x50
 ? __pfx_worker_thread+0x10/0x10
 kthread+0x368/0x490
 ? _raw_spin_unlock_irq+0x23/0x40
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x498/0x7e0
 ? __pfx_ret_from_fork+0x10/0x10
 ? __switch_to+0x9e4/0xe50
 ? __switch_to_asm+0x32/0x60
...
Total: 30, Passed: 30 (100.0%), Failed: 0, Not Run: 0
##############################
Test: TestRunner_mesh-tester - FAIL
Desc: Run mesh-tester with test-runner
Output:
Total: 10, Passed: 8 (80.0%), Failed: 2, Not Run: 0

Failed Test Cases
Mesh - Send cancel - 1                               Timed out    2.715 seconds
Mesh - Send cancel - 2                               Timed out    1.995 seconds
##############################
Test: TestRunner_6lowpan-tester - FAIL
Desc: Run 6lowpan-tester with test-runner
Output:
WARNING: possible circular locking dependency detected
7.0.0-rc2-g5ca9da91b469 #1 Not tainted
------------------------------------------------------
kworker/0:1/11 is trying to acquire lock:
ffff8880026e4940 ((wq_completion)hci0#2){+.+.}-{0:0}, at: touch_wq_lockdep_map+0x75/0x180

but task is already holding lock:
ffffffffb964d720 (rtnl_mutex){+.+.}-{4:4}, at: lowpan_unregister_netdev+0xd/0x30

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (rtnl_mutex){+.+.}-{4:4}:
       lock_acquire+0xf7/0x2c0
       __mutex_lock+0x16b/0x1fc0
       lowpan_register_netdev+0x11/0x30
       chan_ready_cb+0x836/0xd00
       l2cap_recv_frame+0x6a06/0x8920
       l2cap_recv_acldata+0x790/0xdf0
       hci_rx_work+0x500/0xd00
       process_scheduled_works+0xb16/0x1ac0
       worker_thread+0x4ff/0xba0
       kthread+0x368/0x490
       ret_from_fork+0x498/0x7e0
       ret_from_fork_asm+0x19/0x30

-> #3 (&chan->lock#3/1){+.+.}-{4:4}:
       lock_acquire+0xf7/0x2c0
       __mutex_lock+0x16b/0x1fc0
       l2cap_chan_connect+0x74e/0x1980
       lowpan_control_write+0x523/0x660
       full_proxy_write+0x10b/0x190
       vfs_write+0x1c0/0xf60
       ksys_write+0xf1/0x1d0
       do_syscall_64+0xa0/0x570
       entry_SYSCALL_64_after_hwframe+0x74/0x7c

-> #2 (&conn->lock){+.+.}-{4:4}:
...
Total: 8, Passed: 8 (100.0%), Failed: 0, Not Run: 0
##############################
Test: IncrementalBuild - PENDING
Desc: Incremental build with the patches in the series
Output:



https://github.com/bluez/bluetooth-next/pull/50/checks

---
Regards,
Linux Bluetooth


^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2026-04-09 20:21 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-04-07 11:48 [PATCH v2] Bluetooth: btmtk: add event filter to filter specific event Chris Lu
2026-04-07 12:30 ` [v2] " bluez.test.bot
2026-04-07 14:54 ` [PATCH v2] " Luiz Augusto von Dentz
2026-04-08 11:28   ` Chris Lu (陸稚泓)
2026-04-09 20:21 ` [v2] " bluez.test.bot

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