2024-04-12 08:49:20

by Hao Qin

[permalink] [raw]
Subject: [PATCH] Bluetooth: btusb: mediatek: Add usb reset for firmware setup failure

Add usb reset to recover BT device from a firmware setup failure,
it will restore the device to its original state and attempt setup
firmware again.

Signed-off-by: Hao Qin <[email protected]>
---
drivers/bluetooth/btusb.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 4c0cc13adb47..c5aab361795e 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -3160,6 +3160,9 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
btusb_mtk_hci_wmt_sync);
if (err < 0) {
bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
+ btusb_stop_traffic(data);
+ usb_kill_anchored_urbs(&data->tx_anchor);
+ usb_queue_reset_device(data->intf);
return err;
}

--
2.18.0



2024-04-12 09:32:40

by bluez.test.bot

[permalink] [raw]
Subject: RE: Bluetooth: btusb: mediatek: Add usb reset for firmware setup failure

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=843929

---Test result---

Test Summary:
CheckPatch PASS 0.64 seconds
GitLint PASS 0.31 seconds
SubjectPrefix PASS 0.12 seconds
BuildKernel PASS 29.48 seconds
CheckAllWarning PASS 34.55 seconds
CheckSparse PASS 37.69 seconds
CheckSmatch FAIL 35.40 seconds
BuildKernel32 PASS 28.54 seconds
TestRunnerSetup PASS 512.68 seconds
TestRunner_l2cap-tester PASS 18.44 seconds
TestRunner_iso-tester PASS 28.77 seconds
TestRunner_bnep-tester PASS 4.85 seconds
TestRunner_mgmt-tester PASS 109.71 seconds
TestRunner_rfcomm-tester PASS 7.43 seconds
TestRunner_sco-tester PASS 15.11 seconds
TestRunner_ioctl-tester PASS 7.75 seconds
TestRunner_mesh-tester FAIL 6.00 seconds
TestRunner_smp-tester PASS 6.90 seconds
TestRunner_userchan-tester PASS 5.06 seconds
IncrementalBuild PASS 27.50 seconds

Details
##############################
Test: CheckSmatch - FAIL
Desc: Run smatch tool with source
Output:

Segmentation fault (core dumped)
make[4]: *** [scripts/Makefile.build:244: net/bluetooth/hci_core.o] Error 139
make[4]: *** Deleting file 'net/bluetooth/hci_core.o'
make[3]: *** [scripts/Makefile.build:485: net/bluetooth] Error 2
make[2]: *** [scripts/Makefile.build:485: net] Error 2
make[2]: *** Waiting for unfinished jobs....
Segmentation fault (core dumped)
make[4]: *** [scripts/Makefile.build:244: drivers/bluetooth/bcm203x.o] Error 139
make[4]: *** Deleting file 'drivers/bluetooth/bcm203x.o'
make[4]: *** Waiting for unfinished jobs....
Segmentation fault (core dumped)
make[4]: *** [scripts/Makefile.build:244: drivers/bluetooth/bpa10x.o] Error 139
make[4]: *** Deleting file 'drivers/bluetooth/bpa10x.o'
make[3]: *** [scripts/Makefile.build:485: drivers/bluetooth] Error 2
make[2]: *** [scripts/Makefile.build:485: drivers] Error 2
make[1]: *** [/github/workspace/src/src/Makefile:1919: .] Error 2
make: *** [Makefile:240: __sub-make] Error 2
##############################
Test: TestRunner_mesh-tester - FAIL
Desc: Run mesh-tester with test-runner
Output:
Total: 10, Passed: 9 (90.0%), Failed: 1, Not Run: 0

Failed Test Cases
Mesh - Send cancel - 2 Failed 0.094 seconds


---
Regards,
Linux Bluetooth

2024-04-16 14:54:08

by Luiz Augusto von Dentz

[permalink] [raw]
Subject: Re: [PATCH] Bluetooth: btusb: mediatek: Add usb reset for firmware setup failure

Hi,

On Fri, Apr 12, 2024 at 4:43 AM Hao Qin <[email protected]> wrote:
>
> Add usb reset to recover BT device from a firmware setup failure,
> it will restore the device to its original state and attempt setup
> firmware again.
>
> Signed-off-by: Hao Qin <[email protected]>
> ---
> drivers/bluetooth/btusb.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
> index 4c0cc13adb47..c5aab361795e 100644
> --- a/drivers/bluetooth/btusb.c
> +++ b/drivers/bluetooth/btusb.c
> @@ -3160,6 +3160,9 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
> btusb_mtk_hci_wmt_sync);
> if (err < 0) {
> bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
> + btusb_stop_traffic(data);
> + usb_kill_anchored_urbs(&data->tx_anchor);
> + usb_queue_reset_device(data->intf);

What if this was already caused by a reset? Wouldn't that create a
loop resetting the device over and over again?

> return err;
> }
>
> --
> 2.18.0
>


--
Luiz Augusto von Dentz