netdev - Re: [PATCH v3 net-next 3/8] net: dsa: felix: offload per-tc max SDU from tc-taprio

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Message-ID: <20220927184906.1cc33db2@kernel.org>
Date:   Tue, 27 Sep 2022 18:49:06 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Vladimir Oltean <vladimir.oltean@....com>
Cc:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Xiaoliang Yang <xiaoliang.yang_1@....com>,
        Rui Sousa <rui.sousa@....com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        UNGLinuxDriver@...rochip.com,
        Horatiu Vultur <horatiu.vultur@...rochip.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Michael Walle <michael@...le.cc>,
        Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        Maxim Kochetkov <fido_max@...ox.ru>,
        Colin Foster <colin.foster@...advantage.com>,
        Richie Pearn <richard.pearn@....com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Vladimir Oltean <olteanv@...il.com>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Jiri Pirko <jiri@...nulli.us>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 net-next 3/8] net: dsa: felix: offload per-tc max SDU
 from tc-taprio

On Wed, 28 Sep 2022 02:47:41 +0300 Vladimir Oltean wrote:
> +static int vsc9959_qos_query_caps(struct tc_query_caps_base *base)
> +{
> +	switch (base->type) {
> +	case TC_SETUP_QDISC_TAPRIO: {
> +		struct tc_taprio_caps *caps = base->caps;
> +
> +		caps->supports_queue_max_sdu = true;

Compilers don't like the implicit fallthru here and on the next patch,
which seems semi-legit.

> +	}
> +	default:
> +		return -EOPNOTSUPP;
> +	}
> +}