linux-kernel - Re: [PATCH V3 net-next] net: fec: add XDP

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Message-ID: <20230801145723.7ddc2dba@kernel.org>
Date:   Tue, 1 Aug 2023 14:57:23 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Wei Fang <wei.fang@....com>
Cc:     davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
        shenwei.wang@....com, xiaoning.wang@....com, ast@...nel.org,
        daniel@...earbox.net, hawk@...nel.org, john.fastabend@...il.com,
        netdev@...r.kernel.org, linux-imx@....com,
        linux-kernel@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: [PATCH V3 net-next] net: fec: add XDP_TX feature support

On Mon, 31 Jul 2023 14:00:25 +0800 Wei Fang wrote:
>  	case XDP_TX:
> +		err = fec_enet_xdp_tx_xmit(fep->netdev, xdp);
> +		if (err) {
> +			ret = FEC_ENET_XDP_CONSUMED;
> +			page = virt_to_head_page(xdp->data);
> +			page_pool_put_page(rxq->page_pool, page, sync, true);

The error path should call trace_xdp_exception().
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