1 files changed, 24 insertions, 9 deletions

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index a4278aa618ab..5cfdc813491a 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -463,18 +463,24 @@ struct l2cap_le_credits {
 #define L2CAP_ECRED_MAX_CID		5
 
 struct l2cap_ecred_conn_req {
-	__le16 psm;
-	__le16 mtu;
-	__le16 mps;
-	__le16 credits;
+	/* New members must be added within the struct_group() macro below. */
+	__struct_group(l2cap_ecred_conn_req_hdr, hdr, __packed,
+		__le16 psm;
+		__le16 mtu;
+		__le16 mps;
+		__le16 credits;
+	);
 	__le16 scid[];
 } __packed;
 
 struct l2cap_ecred_conn_rsp {
-	__le16 mtu;
-	__le16 mps;
-	__le16 credits;
-	__le16 result;
+	/* New members must be added within the struct_group() macro below. */
+	struct_group_tagged(l2cap_ecred_conn_rsp_hdr, hdr,
+		__le16 mtu;
+		__le16 mps;
+		__le16 credits;
+		__le16 result;
+	);
 	__le16 dcid[];
 };
 
@@ -548,6 +554,9 @@ struct l2cap_chan {
 	__u16		tx_credits;
 	__u16		rx_credits;
 
+	/* estimated available receive buffer space or -1 if unknown */
+	ssize_t		rx_avail;
+
 	__u8		tx_state;
 	__u8		rx_state;
 
@@ -682,10 +691,15 @@ struct l2cap_user {
 /* ----- L2CAP socket info ----- */
 #define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
 
+struct l2cap_rx_busy {
+	struct list_head	list;
+	struct sk_buff		*skb;
+};
+
 struct l2cap_pinfo {
 	struct bt_sock		bt;
 	struct l2cap_chan	*chan;
-	struct sk_buff		*rx_busy_skb;
+	struct list_head	rx_busy;
 };
 
 enum {
@@ -943,6 +957,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 int l2cap_chan_reconfigure(struct l2cap_chan *chan, __u16 mtu);
 int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len);
 void l2cap_chan_busy(struct l2cap_chan *chan, int busy);
+void l2cap_chan_rx_avail(struct l2cap_chan *chan, ssize_t rx_avail);
 int l2cap_chan_check_security(struct l2cap_chan *chan, bool initiator);
 void l2cap_chan_set_defaults(struct l2cap_chan *chan);
 int l2cap_ertm_init(struct l2cap_chan *chan);