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Message-ID: <Y+oZHpMpW6ODQQpY@kadam>
Date:   Mon, 13 Feb 2023 14:03:58 +0300
From:   Dan Carpenter <error27@...il.com>
To:     Steen Hegelund <steen.hegelund@...rochip.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, UNGLinuxDriver@...rochip.com,
        Randy Dunlap <rdunlap@...radead.org>,
        Casper Andersson <casper.casan@...il.com>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Wan Jiabing <wanjiabing@...o.com>,
        Nathan Huckleberry <nhuck@...gle.com>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Daniel Machon <daniel.machon@...rochip.com>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>,
        Lars Povlsen <lars.povlsen@...rochip.com>,
        Michael Walle <michael@...le.cc>
Subject: Re: [PATCH net-next 10/10] net: microchip: sparx5: Add TC vlan
 action support for the ES0 VCAP

On Mon, Feb 13, 2023 at 10:24:26AM +0100, Steen Hegelund wrote:
> +static int sparx5_tc_action_vlan_modify(struct vcap_admin *admin,
> +					struct vcap_rule *vrule,
> +					struct flow_cls_offload *fco,
> +					struct flow_action_entry *act,
> +					u16 tpid)
> +{
> +	int err = 0;
> +
> +	switch (admin->vtype) {
> +	case VCAP_TYPE_ES0:
> +		err = vcap_rule_add_action_u32(vrule,
> +					       VCAP_AF_PUSH_OUTER_TAG,
> +					       SPX5_OTAG_TAG_A);

This err assignment is never used.

> +		break;
> +	default:
> +		NL_SET_ERR_MSG_MOD(fco->common.extack,
> +				   "VLAN modify action not supported in this VCAP");
> +		return -EOPNOTSUPP;
> +	}
> +
> +	switch (tpid) {
> +	case ETH_P_8021Q:
> +		err = vcap_rule_add_action_u32(vrule,
> +					       VCAP_AF_TAG_A_TPID_SEL,
> +					       SPX5_TPID_A_8100);
> +		break;
> +	case ETH_P_8021AD:
> +		err = vcap_rule_add_action_u32(vrule,
> +					       VCAP_AF_TAG_A_TPID_SEL,
> +					       SPX5_TPID_A_88A8);
> +		break;
> +	default:
> +		NL_SET_ERR_MSG_MOD(fco->common.extack,
> +				   "Invalid vlan proto");
> +		err = -EINVAL;
> +	}
> +	if (err)
> +		return err;
> +
> +	err = vcap_rule_add_action_u32(vrule,
> +				       VCAP_AF_TAG_A_VID_SEL,
> +				       SPX5_VID_A_VAL);
> +	if (err)
> +		return err;

regards,
dan carpenter

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