[PATCH v2 2/3] Bluetooth: HCI: Fix using LE/ACL buffers for ISO packets

[Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx>]

From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>

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@xxxxxxxxx>
---
 net/bluetooth/hci_conn.c  | 26 +++++++++++---------------
 net/bluetooth/hci_core.c  |  3 +--
 net/bluetooth/hci_event.c | 16 +++-------------
 3 files changed, 15 insertions(+), 30 deletions(-)

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 7a879290dd28..e6cea51b3eab 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -1152,28 +1152,24 @@ void hci_conn_del(struct hci_conn *conn)
 	disable_delayed_work_sync(&conn->auto_accept_work);
 	disable_delayed_work_sync(&conn->idle_work);
 
-	if (conn->type == ACL_LINK) {
-		/* Unacked frames */
+	/* Handle unnacked frames */
+	switch (conn->type) {
+	case ACL_LINK:
 		hdev->acl_cnt += conn->sent;
-	} else if (conn->type == LE_LINK) {
+		break;
+	case LE_LINK:
 		cancel_delayed_work(&conn->le_conn_timeout);
 
 		if (hdev->le_pkts)
 			hdev->le_cnt += conn->sent;
 		else
 			hdev->acl_cnt += conn->sent;
-	} else {
-		/* Unacked ISO frames */
-		if (conn->type == CIS_LINK ||
-		    conn->type == BIS_LINK ||
-		    conn->type == PA_LINK) {
-			if (hdev->iso_pkts)
-				hdev->iso_cnt += conn->sent;
-			else if (hdev->le_pkts)
-				hdev->le_cnt += conn->sent;
-			else
-				hdev->acl_cnt += conn->sent;
-		}
+		break;
+	case CIS_LINK:
+	case BIS_LINK:
+	case PA_LINK:
+		hdev->iso_cnt += conn->sent;
+		break;
 	}
 
 	skb_queue_purge(&conn->data_q);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 55e0722fd066..eb09f80a3243 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3759,8 +3759,7 @@ 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 fe7cdd67ad2a..1686680a38c8 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -4433,19 +4433,9 @@ 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:
-- 
2.50.1