On Mon, 10 Feb 2025 09:43:29 -0800 Amery Hung wrote: > Do not allow users to attach bpf qdiscs to classful qdiscs. This is to > prevent accidentally breaking existings classful qdiscs if they rely on > some data in the child qdisc. This restriction can potentially be lifted > in the future. Note that, we still allow bpf qdisc to be attached to mq. Reviewed-by: Jakub Kicinski <kuba@xxxxxxxxxx>