netdev - RE: [PATCH v23 net-next 1/6] sched: Struct definition and parsing of dualpi2 qdisc

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Message-ID:
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Date: Thu, 17 Jul 2025 07:17:05 +0000
From: "Chia-Yu Chang (Nokia)" <chia-yu.chang@...ia-bell-labs.com>
To: Jakub Kicinski <kuba@...nel.org>
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Subject: RE: [PATCH v23 net-next 1/6] sched: Struct definition and parsing of
 dualpi2 qdisc

> -----Original Message-----
> From: Jakub Kicinski <kuba@...nel.org> 
> Sent: Thursday, July 17, 2025 1:48 AM
> To: Chia-Yu Chang (Nokia) <chia-yu.chang@...ia-bell-labs.com>
> Cc: alok.a.tiwari@...cle.com; pctammela@...atatu.com; horms@...nel.org; donald.hunter@...il.com; xandfury@...il.com; netdev@...r.kernel.org; dave.taht@...il.com; pabeni@...hat.com; jhs@...atatu.com; stephen@...workplumber.org; xiyou.wangcong@...il.com; jiri@...nulli.us; davem@...emloft.net; edumazet@...gle.com; andrew+netdev@...n.ch; ast@...erby.net; liuhangbin@...il.com; shuah@...nel.org; linux-kselftest@...r.kernel.org; ij@...nel.org; ncardwell@...gle.com; Koen De Schepper (Nokia) <koen.de_schepper@...ia-bell-labs.com>; g.white@...lelabs.com; ingemar.s.johansson@...csson.com; mirja.kuehlewind@...csson.com; cheshire@...le.com; rs.ietf@....at; Jason_Livingood@...cast.com; vidhi_goel@...le.com
> Subject: Re: [PATCH v23 net-next 1/6] sched: Struct definition and parsing of dualpi2 qdisc
> 
> 
> CAUTION: This is an external email. Please be very careful when clicking links or opening attachments. See the URL nok.it/ext for additional information.
> 
> 
> 
> On Sun, 13 Jul 2025 12:52:29 +0200 chia-yu.chang@...ia-bell-labs.com
> wrote:
> > +     err = nla_parse_nested(tb, TCA_DUALPI2_MAX, opt, dualpi2_policy,
> > +                            extack);
> > +     if (err < 0)
> > +             return err;
> 
> We should probably have:
> 
> +       if (tb[TCA_DUALPI2_STEP_THRESH_PKTS] && tb[TCA_DUALPI2_STEP_THRESH_US]) {
> +               NL_SET_ERR_MSG_MOD(extack, "multiple step thresh attributes");
> +               return -EINVAL;
> +       }
> 
> here?

Yes, you are right. I will add that in the next version.