NG_L2CAP_CLT_SDP_DISABLED
if (l2cap->flags & NG_L2CAP_CLT_SDP_DISABLED)
l2cap->flags &= ~(NG_L2CAP_CLT_SDP_DISABLED |
l2cap->flags |= (NG_L2CAP_CLT_SDP_DISABLED |
l2cap->flags &= ~NG_L2CAP_CLT_SDP_DISABLED;
l2cap->flags |= NG_L2CAP_CLT_SDP_DISABLED;