netdev - Re: [PATCH bpf-next v4 15/19] bpf: net_sched: Disable attaching bpf qdisc to non root

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Message-ID: <20250215113517.71c0553d@kernel.org>
Date: Sat, 15 Feb 2025 11:35:17 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Amery Hung <ameryhung@...il.com>
Cc: netdev@...r.kernel.org, bpf@...r.kernel.org, daniel@...earbox.net,
 andrii@...nel.org, alexei.starovoitov@...il.com, martin.lau@...nel.org,
 edumazet@...gle.com, xiyou.wangcong@...il.com, cong.wang@...edance.com,
 jhs@...atatu.com, sinquersw@...il.com, toke@...hat.com, jiri@...nulli.us,
 stfomichev@...il.com, ekarani.silvestre@....ufcg.edu.br,
 yangpeihao@...u.edu.cn, yepeilin.cs@...il.com, kernel-team@...a.com
Subject: Re: [PATCH bpf-next v4 15/19] bpf: net_sched: Disable attaching bpf
 qdisc to non root

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@...nel.org>