diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index ca4d3b4..ff1744e 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -161,9 +161,9 @@
 
 static u16 l2cap_alloc_cid(struct l2cap_chan_list *l)
 {
-	u16 cid = 0x0040;
+	u16 cid = L2CAP_CID_DYN_START;
 
-	for (; cid < 0xffff; cid++) {
+	for (; cid < L2CAP_CID_DYN_END; cid++) {
 		if(!__l2cap_get_chan_by_scid(l, cid))
 			return cid;
 	}
@@ -215,13 +215,13 @@
 		l2cap_pi(sk)->scid = l2cap_alloc_cid(l);
 	} else if (sk->sk_type == SOCK_DGRAM) {
 		/* Connectionless socket */
-		l2cap_pi(sk)->scid = 0x0002;
-		l2cap_pi(sk)->dcid = 0x0002;
+		l2cap_pi(sk)->scid = L2CAP_CID_CONN_LESS;
+		l2cap_pi(sk)->dcid = L2CAP_CID_CONN_LESS;
 		l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
 	} else {
 		/* Raw socket can send/recv signalling messages only */
-		l2cap_pi(sk)->scid = 0x0001;
-		l2cap_pi(sk)->dcid = 0x0001;
+		l2cap_pi(sk)->scid = L2CAP_CID_SIGNALING;
+		l2cap_pi(sk)->dcid = L2CAP_CID_SIGNALING;
 		l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
 	}
 
@@ -1598,7 +1598,7 @@
 
 	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
 	lh->len = cpu_to_le16(L2CAP_CMD_HDR_SIZE + dlen);
-	lh->cid = cpu_to_le16(0x0001);
+	lh->cid = cpu_to_le16(L2CAP_CID_SIGNALING);
 
 	cmd = (struct l2cap_cmd_hdr *) skb_put(skb, L2CAP_CMD_HDR_SIZE);
 	cmd->code  = code;
@@ -2420,11 +2420,11 @@
 	BT_DBG("len %d, cid 0x%4.4x", len, cid);
 
 	switch (cid) {
-	case 0x0001:
+	case L2CAP_CID_SIGNALING:
 		l2cap_sig_channel(conn, skb);
 		break;
 
-	case 0x0002:
+	case L2CAP_CID_CONN_LESS:
 		psm = get_unaligned((__le16 *) skb->data);
 		skb_pull(skb, 2);
 		l2cap_conless_channel(conn, psm, skb);