netdev - Re: [RFC PATCH v8 09/20] bpf: Find special BTF fields in union

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Message-ID: <CAMB2axPv3PgKSBPkN+__AhgGk5wGo2+VtzKroPWGJwDtg5o4eg@mail.gmail.com>
Date: Thu, 16 May 2024 16:37:26 -0700
From: Amery Hung <ameryhung@...il.com>
To: netdev@...r.kernel.org
Cc: bpf@...r.kernel.org, yangpeihao@...u.edu.cn, daniel@...earbox.net, 
	andrii@...nel.org, martin.lau@...nel.org, sinquersw@...il.com, 
	toke@...hat.com, jhs@...atatu.com, jiri@...nulli.us, sdf@...gle.com, 
	xiyou.wangcong@...il.com, yepeilin.cs@...il.com
Subject: Re: [RFC PATCH v8 09/20] bpf: Find special BTF fields in union

The implementation of supporting adding skb to collections is flaky as
Kui-Feng has pointed out in offline discussion. Basically, supporting
special BTF fields in unions needs more care.

I will defer patch 5-12 to another patchset after the first BPF Qdisc
patchset lands. While the performance of qdiscs implemented with the first
series will not be as good, this will make the patchset easier to review.