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Message-ID: <0391b306-1368-47ea-9602-26ff6df48921@molgen.mpg.de>
Date: Wed, 24 Apr 2024 16:13:09 +0200
From: Paul Menzel <pmenzel@...gen.mpg.de>
To: Chun-Yi Lee <joeyli.kernel@...il.com>
Cc: Chun-Yi Lee <jlee@...e.com>,
Luiz Augusto von Dentz <luiz.von.dentz@...el.com>,
Manish Mandlik <mmandlik@...gle.com>, Archie Pusaka <apusaka@...omium.org>,
Miao-chen Chou <mcchou@...omium.org>, linux-kernel@...r.kernel.org,
linux-bluetooth@...r.kernel.org
Subject: Re: [PATCH] Bluetooth: hci_sync: Using hci_cmd_sync_submit when
removing Adv Monitor
Dear Chun-Yi,
Thank you for your patch.
Am 24.04.24 um 15:59 schrieb Lee, Chun-Yi:
> From: Chun-Yi Lee <jlee@...e.com>
Please use imperative mood in the commit message summary:
Use hci_cmd_sync_submit() when removing Adv Monitor
> Since the d883a4669a1de be introduced in v6.4, bluetooth daemon
> got the following failed message of MGMT_OP_REMOVE_ADV_MONITOR
> command when controller is power-off:
Maybe:
Since commit d883a4669a1de, present since Linux v6.4, the daemon
bluetoothd logs the failure below, if the command
MGMT_OP_REMOVE_ADV_MONITOR is sent when the controller is powered off.
> bluetoothd[20976]:
> src/adapter.c:reset_adv_monitors_complete() Failed to reset Adv
> Monitors: Failed>
Please make this one line and indent it with four spaces.
> Normally this situation is happened when the bluetoothd deamon
1. happen*s*
2. d*ae*mon
> be started manually after system booting. Which means that
is started
> bluetoothd received MGMT_EV_INDEX_ADDED event after kernel
receive*s*
> runs hci_power_off().
>
> Base on doc/mgmt-api.txt, the MGMT_OP_REMOVE_ADV_MONITOR command
Base*d*
> can be used when the controller is not powered. This patch changes
“This patch …” is redundant. Use: Change the code …
> the code in remove_adv_monitor() to use hci_cmd_sync_submit()
> instead of hci_cmd_sync_queue().
Please document the test setup.
> Fixes: d883a4669a1de ("Bluetooth: hci_sync: Only allow hci_cmd_sync_queue if running")
> Cc: Luiz Augusto von Dentz <luiz.von.dentz@...el.com>
> Cc: Manish Mandlik <mmandlik@...gle.com>
> Cc: Archie Pusaka <apusaka@...omium.org>
> Cc: Miao-chen Chou <mcchou@...omium.org>
> Signed-off-by: Chun-Yi Lee <jlee@...e.com>
> ---
> net/bluetooth/mgmt.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
> index 32ed6e9245a3..21962969411d 100644
> --- a/net/bluetooth/mgmt.c
> +++ b/net/bluetooth/mgmt.c
> @@ -5475,7 +5475,7 @@ static int remove_adv_monitor(struct sock *sk, struct hci_dev *hdev,
> goto unlock;
> }
>
> - err = hci_cmd_sync_queue(hdev, mgmt_remove_adv_monitor_sync, cmd,
> + err = hci_cmd_sync_submit(hdev, mgmt_remove_adv_monitor_sync, cmd,
> mgmt_remove_adv_monitor_complete);
>
> if (err) {
Kind regards,
Paul
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