Bluetooth: Move conn_state to struct l2cap_chan

This is part of "moving things to l2cap_chan". As one the first move it
triggered a big number of changes in the funcions parameters, basically
changing the struct sock param to struct l2cap_chan.
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

include/net/bluetooth/l2cap.h

@@ -286,6 +286,8 @@ struct l2cap_chan {
 	__u8		num_conf_req;
 	__u8		num_conf_rsp;
 
+	__u16		conn_state;
+
 	struct list_head list;
 };
 
@@ -350,7 +352,6 @@ struct l2cap_pinfo {
 	__u8		flushable;
 
 	__u8		conf_state;
-	__u16		conn_state;
 
 	__u8		next_tx_seq;
 	__u8		expected_ack_seq;
@@ -456,7 +457,7 @@ struct sk_buff *l2cap_create_iframe_pdu(struct sock *sk, struct msghdr *msg, siz
 int l2cap_sar_segment_sdu(struct sock *sk, struct msghdr *msg, size_t len);
 void l2cap_do_send(struct sock *sk, struct sk_buff *skb);
 void l2cap_streaming_send(struct sock *sk);
-int l2cap_ertm_send(struct sock *sk);
+int l2cap_ertm_send(struct l2cap_chan *chan);
 
 void l2cap_sock_set_timer(struct sock *sk, long timeout);
 void l2cap_sock_clear_timer(struct sock *sk);

net/bluetooth/l2cap_sock.c

@@ -778,14 +778,16 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct ms
 
 		if (pi->mode == L2CAP_MODE_STREAMING) {
 			l2cap_streaming_send(sk);
-		} else {
-			if ((pi->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
-					(pi->conn_state & L2CAP_CONN_WAIT_F)) {
 			err = len;
 			break;
 		}
-			err = l2cap_ertm_send(sk);
+
+		if ((pi->chan->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
+				(pi->chan->conn_state & L2CAP_CONN_WAIT_F)) {
+			err = len;
+			break;
 		}
+		err = l2cap_ertm_send(pi->chan);
 
 		if (err >= 0)
 			err = len;