netdev - Re: [PATCH (repost) net-next] sched: add extack for tfilter

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Date:   Fri, 4 Nov 2022 10:39:32 +0800
From:   Hangbin Liu <liuhangbin@...il.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Jamal Hadi Salim <jhs@...atatu.com>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Cong Wang <xiyou.wangcong@...il.com>, netdev@...r.kernel.org,
        Jiri Pirko <jiri@...nulli.us>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        David Ahern <dsahern@...nel.org>
Subject: Re: [PATCH (repost) net-next] sched: add extack for tfilter_notify

On Wed, Nov 02, 2022 at 04:36:46PM -0700, Jakub Kicinski wrote:
> > I meant you only added it for filter notification - but such a feature would
> > be useful also for other tc pieces (like actions and qdiscs). Is there a better
> > way to do it such that the other tc parts may benefit (instead of just
> > filter_notify?).
> > 
> > Yes.
> > So looks good to me then.
> > 
> > Acked-by: Jamal Hadi Salim <jhs@...atatu.com>

Thanks Jamal for the comments.

> 
> Eish.
> 
> Hangbin, I'm still against this. Please go back to my suggestions /
> questions. A tracepoint or an attribute should do. Multi-part messages
> are very hard to map to normal programming constructs, and I don't
> think there is any precedent for mutli-part notifications.

OK, I will re-consider about how to implement it via tracepoint or an attribute.

Thanks
Hangbin