From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
This fixes only matching CIS by address which prevents creating new hcon
if upper layer is requesting a specific CIS ID.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
---
include/net/bluetooth/hci_core.h | 7 ++++++-
net/bluetooth/hci_conn.c | 2 +-
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 4fe1e71cb9d8..6f5e8594ff2d 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1180,7 +1180,8 @@ static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
bdaddr_t *ba,
- __u8 ba_type)
+ __u8 ba_type,
+ __u8 id)
{
struct hci_conn_hash *h = &hdev->conn_hash;
struct hci_conn *c;
@@ -1191,6 +1192,10 @@ static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
if (c->type != ISO_LINK)
continue;
+ /* Match CIS ID if set */
+ if (id != BT_ISO_QOS_CIS_UNSET && id != c->iso_qos.ucast.cis)
+ continue;
+
if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
rcu_read_unlock();
return c;
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 8b8ebd3e2585..5524f08b91ae 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -1842,7 +1842,7 @@ struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
{
struct hci_conn *cis;
- cis = hci_conn_hash_lookup_cis(hdev, dst, dst_type);
+ cis = hci_conn_hash_lookup_cis(hdev, dst, dst_type, qos->ucast.cis);
if (!cis) {
cis = hci_conn_add(hdev, ISO_LINK, dst, HCI_ROLE_MASTER);
if (!cis)
--
2.39.2
