2024-03-28 22:22:26

by Luiz Augusto von Dentz

[permalink] [raw]
Subject: [PATCH v1] Bluetooth: hci_event: Set DISCOVERY_FINDING on SCAN_ENABLED

From: Luiz Augusto von Dentz <[email protected]>

This makes sure that discovery state is properly synchronized otherwise
reports may not generate MGMT DeviceFound events as it would be assumed
that it was not initiated by a discovery session.

Signed-off-by: Luiz Augusto von Dentz <[email protected]>
---
net/bluetooth/hci_core.c | 11 +++++++++--
net/bluetooth/hci_event.c | 3 +--
2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index dde333d9cfc1..e436737ca505 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -149,8 +149,6 @@ void hci_discovery_set_state(struct hci_dev *hdev, int state)
{
int old_state = hdev->discovery.state;

- BT_DBG("%s state %u -> %u", hdev->name, hdev->discovery.state, state);
-
if (old_state == state)
return;

@@ -166,6 +164,13 @@ void hci_discovery_set_state(struct hci_dev *hdev, int state)
case DISCOVERY_STARTING:
break;
case DISCOVERY_FINDING:
+ /* If discovery was not started then it was initiated by the
+ * MGMT interface so no MGMT event shall be generated either
+ */
+ if (old_state != DISCOVERY_STARTING) {
+ hdev->discovery.state = old_state;
+ return;
+ }
mgmt_discovering(hdev, 1);
break;
case DISCOVERY_RESOLVING:
@@ -173,6 +178,8 @@ void hci_discovery_set_state(struct hci_dev *hdev, int state)
case DISCOVERY_STOPPING:
break;
}
+
+ bt_dev_dbg(hdev, "state %u -> %u", old_state, state);
}

void hci_inquiry_cache_flush(struct hci_dev *hdev)
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index a8b8cfebe018..a6cc910ebc28 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1779,8 +1779,7 @@ static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable)
hci_dev_set_flag(hdev, HCI_LE_SCAN);
if (hdev->le_scan_type == LE_SCAN_ACTIVE)
clear_pending_adv_report(hdev);
- if (hci_dev_test_flag(hdev, HCI_MESH))
- hci_discovery_set_state(hdev, DISCOVERY_FINDING);
+ hci_discovery_set_state(hdev, DISCOVERY_FINDING);
break;

case LE_SCAN_DISABLE:
--
2.44.0



2024-03-28 22:55:49

by bluez.test.bot

[permalink] [raw]
Subject: RE: [v1] Bluetooth: hci_event: Set DISCOVERY_FINDING on SCAN_ENABLED

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=839568

---Test result---

Test Summary:
CheckPatch PASS 0.98 seconds
GitLint PASS 0.28 seconds
SubjectPrefix PASS 0.10 seconds
BuildKernel PASS 30.46 seconds
CheckAllWarning PASS 33.18 seconds
CheckSparse WARNING 38.75 seconds
CheckSmatch FAIL 36.07 seconds
BuildKernel32 PASS 29.64 seconds
TestRunnerSetup PASS 525.28 seconds
TestRunner_l2cap-tester PASS 18.25 seconds
TestRunner_iso-tester PASS 30.55 seconds
TestRunner_bnep-tester PASS 6.92 seconds
TestRunner_mgmt-tester PASS 113.67 seconds
TestRunner_rfcomm-tester PASS 9.32 seconds
TestRunner_sco-tester PASS 19.03 seconds
TestRunner_ioctl-tester PASS 7.94 seconds
TestRunner_mesh-tester PASS 5.86 seconds
TestRunner_smp-tester PASS 6.91 seconds
TestRunner_userchan-tester PASS 4.93 seconds
IncrementalBuild PASS 28.27 seconds

Details
##############################
Test: CheckSparse - WARNING
Desc: Run sparse tool with linux kernel
Output:
net/bluetooth/hci_event.c: note: in included file (through include/net/bluetooth/hci_core.h):
##############################
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....
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


---
Regards,
Linux Bluetooth

2024-04-01 14:11:36

by patchwork-bot+bluetooth

[permalink] [raw]
Subject: Re: [PATCH v1] Bluetooth: hci_event: Set DISCOVERY_FINDING on SCAN_ENABLED

Hello:

This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <[email protected]>:

On Thu, 28 Mar 2024 18:15:58 -0400 you wrote:
> From: Luiz Augusto von Dentz <[email protected]>
>
> This makes sure that discovery state is properly synchronized otherwise
> reports may not generate MGMT DeviceFound events as it would be assumed
> that it was not initiated by a discovery session.
>
> Signed-off-by: Luiz Augusto von Dentz <[email protected]>
>
> [...]

Here is the summary with links:
- [v1] Bluetooth: hci_event: Set DISCOVERY_FINDING on SCAN_ENABLED
https://git.kernel.org/bluetooth/bluetooth-next/c/ebcd560040bd

You are awesome, thank you!
--
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