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From:   Iulia Tanasescu <iulia.tanasescu@nxp.com>
To:     linux-bluetooth@vger.kernel.org
Cc:     claudia.rosu@nxp.com, mihai-octavian.urzica@nxp.com,
        silviu.barbulescu@nxp.com, vlad.pruteanu@nxp.com,
        andrei.istodorescu@nxp.com, luiz.dentz@gmail.com,
        Iulia Tanasescu <iulia.tanasescu@nxp.com>
Subject: [PATCH 1/1] Bluetooth: ISO: Match QoS adv handle with BIG handle
Date:   Tue,  3 Oct 2023 17:37:39 +0300
Message-Id: <20231003143739.2925-2-iulia.tanasescu@nxp.com>
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In case the user binds multiple sockets for the same BIG, the BIG
handle should be matched with the associated adv handle, if it has
already been allocated previously.

Signed-off-by: Iulia Tanasescu <iulia.tanasescu@nxp.com>
---
 net/bluetooth/hci_conn.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index e62a5f368a51..7890ec449a7b 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -1494,6 +1494,18 @@ static int qos_set_bis(struct hci_dev *hdev, struct bt_iso_qos *qos)
 
 	/* Allocate BIS if not set */
 	if (qos->bcast.bis == BT_ISO_QOS_BIS_UNSET) {
+		if (qos->bcast.big != BT_ISO_QOS_BIG_UNSET) {
+			conn = hci_conn_hash_lookup_big(hdev, qos->bcast.big);
+
+			if (conn) {
+				/* If the BIG handle is already matched to an advertising
+				 * handle, do not allocate a new one.
+				 */
+				qos->bcast.bis = conn->iso_qos.bcast.bis;
+				return 0;
+			}
+		}
+
 		/* Find an unused adv set to advertise BIS, skip instance 0x00
 		 * since it is reserved as general purpose set.
 		 */
-- 
2.39.2