linux-kernel - [PATCH] Bluetooth: hci_sync: use HCI_CMD

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Message-Id: <20260108-pa_sync_cmd_timeout-v1-1-cd35538a9e12@amlogic.com>
Date: Thu, 08 Jan 2026 14:03:43 +0800
From: Yang Li via B4 Relay <devnull+yang.li.amlogic.com@...nel.org>
To: Marcel Holtmann <marcel@...tmann.org>, 
 Johan Hedberg <johan.hedberg@...il.com>, 
 Luiz Augusto von Dentz <luiz.dentz@...il.com>
Cc: linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Yang Li <yang.li@...ogic.com>
Subject: [PATCH] Bluetooth: hci_sync: use HCI_CMD_TIMEOUT for PA sync
 commands

From: Yang Li <yang.li@...ogic.com>

PA sync HCI commands incorrectly use conn->conn_timeout, which defaults
to 20s and is too long. If the PA Sync Established event is not
received, the command remains pending and causes userspace timeouts.

Signed-off-by: Yang Li <yang.li@...ogic.com>
---
 net/bluetooth/hci_sync.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index f04a90bce4a9..58292b01f062 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -7159,7 +7159,7 @@ static int hci_le_pa_create_sync(struct hci_dev *hdev, void *data)
 	if (conn->sid == HCI_SID_INVALID) {
 		err = __hci_cmd_sync_status_sk(hdev, HCI_OP_NOP, 0, NULL,
 					       HCI_EV_LE_EXT_ADV_REPORT,
-					       conn->conn_timeout, NULL);
+					       HCI_CMD_TIMEOUT, NULL);
 		if (err == -ETIMEDOUT)
 			goto done;
 	}
@@ -7187,7 +7187,7 @@ static int hci_le_pa_create_sync(struct hci_dev *hdev, void *data)
 	err = __hci_cmd_sync_status_sk(hdev, HCI_OP_LE_PA_CREATE_SYNC,
 				       sizeof(cp), &cp,
 				       HCI_EV_LE_PA_SYNC_ESTABLISHED,
-				       conn->conn_timeout, NULL);
+				       HCI_CMD_TIMEOUT, NULL);
 	if (err == -ETIMEDOUT)
 		__hci_cmd_sync_status(hdev, HCI_OP_LE_PA_CREATE_SYNC_CANCEL,
 				      0, NULL, HCI_CMD_TIMEOUT);

---
base-commit: bdb9aba465a85122bcba01a6154e237b9843e25b
change-id: 20260108-pa_sync_cmd_timeout-ff46f67b5d2a

Best regards,
-- 
Yang Li <yang.li@...ogic.com>