diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 644af94ebb0a..8af34d2fdbef 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5314,16 +5314,6 @@ static inline int l2cap_le_sig_cmd(struct l2cap_conn *conn,
 	}
 }
 
-static __le16 l2cap_err_to_reason(int err)
-{
-	switch (err) {
-	case -EINVAL:
-	case -EPROTO:
-	default:
-		return __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
-	}
-}
-
 static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 					struct sk_buff *skb)
 {
@@ -5356,7 +5346,7 @@ static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 
 		BT_ERR("Wrong link type (%d)", err);
 
-		rej.reason = l2cap_err_to_reason(err);
+		rej.reason = __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
 		l2cap_send_cmd(conn, cmd->ident, L2CAP_COMMAND_REJ,
 			       sizeof(rej), &rej);
 	}
@@ -5401,7 +5391,7 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 
 			BT_ERR("Wrong link type (%d)", err);
 
-			rej.reason = l2cap_err_to_reason(err);
+			rej.reason = __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
 			l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ,
 				       sizeof(rej), &rej);
 		}