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authorLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2025-06-27 11:18:30 -0400
committerLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2025-09-27 11:37:01 -0400
commit69a86cc17811c411fe336eb484a23bc0b425a814 (patch)
treee6fa55db704ac15d224e528f038d068c3b4cc3e6
parentd79c7d01f1c8bcf9a48337c8960d618fbe31fc0c (diff)
Bluetooth: HCI: Fix using LE/ACL buffers for ISO packets
ISO packets shall not use LE/ACL buffer pool, that feature seem to be exclusive to LE-ACL only. Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
-rw-r--r--net/bluetooth/hci_conn.c7
-rw-r--r--net/bluetooth/hci_core.c6
-rw-r--r--net/bluetooth/hci_event.c16
3 files changed, 8 insertions, 21 deletions
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index e524bb59bff2..091cff2155e6 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -924,10 +924,9 @@ static struct hci_conn *__hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t
case CIS_LINK:
case BIS_LINK:
case PA_LINK:
- if (hdev->iso_mtu)
- /* Dedicated ISO Buffer exists */
- break;
- fallthrough;
+ if (!hdev->iso_mtu)
+ return ERR_PTR(-ECONNREFUSED);
+ break;
case LE_LINK:
if (hdev->le_mtu && hdev->le_mtu < HCI_MIN_LE_MTU)
return ERR_PTR(-ECONNREFUSED);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 55e0722fd066..e2bffad9816f 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3399,8 +3399,7 @@ static inline void hci_quote_sent(struct hci_conn *conn, int num, int *quote)
case CIS_LINK:
case BIS_LINK:
case PA_LINK:
- cnt = hdev->iso_mtu ? hdev->iso_cnt :
- hdev->le_mtu ? hdev->le_cnt : hdev->acl_cnt;
+ cnt = hdev->iso_cnt;
break;
default:
cnt = 0;
@@ -3759,8 +3758,7 @@ static void hci_sched_iso(struct hci_dev *hdev, __u8 type)
if (!hci_conn_num(hdev, type))
return;
- cnt = hdev->iso_pkts ? &hdev->iso_cnt :
- hdev->le_pkts ? &hdev->le_cnt : &hdev->acl_cnt;
+ cnt = &hdev->iso_cnt;
while (*cnt && (conn = hci_low_sent(hdev, type, &quote))) {
while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
BT_DBG("skb %p len %d", skb, skb->len);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index fe49e8a7969f..d790b0d4eb9a 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -4461,19 +4461,9 @@ static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data,
case CIS_LINK:
case BIS_LINK:
case PA_LINK:
- if (hdev->iso_pkts) {
- hdev->iso_cnt += count;
- if (hdev->iso_cnt > hdev->iso_pkts)
- hdev->iso_cnt = hdev->iso_pkts;
- } else if (hdev->le_pkts) {
- hdev->le_cnt += count;
- if (hdev->le_cnt > hdev->le_pkts)
- hdev->le_cnt = hdev->le_pkts;
- } else {
- hdev->acl_cnt += count;
- if (hdev->acl_cnt > hdev->acl_pkts)
- hdev->acl_cnt = hdev->acl_pkts;
- }
+ hdev->iso_cnt += count;
+ if (hdev->iso_cnt > hdev->iso_pkts)
+ hdev->iso_cnt = hdev->iso_pkts;
break;
default: