Re: [PATCH net 2/3] net: fec: recycle pages for transmitted XDP frames

From: Andrew Lunn
Date: Tue Jul 04 2023 - 19:48:32 EST


> /* Save skb pointer */
> - txq->tx_skbuff[index] = skb;
> + txq->tx_buf[index].skb = skb;

What about txq->tx_buf[index].type ?

> @@ -862,7 +860,7 @@ static int fec_enet_txq_submit_tso(struct fec_enet_priv_tx_q *txq,
> }
>
> /* Save skb pointer */
> - txq->tx_skbuff[index] = skb;
> + txq->tx_buf[index].skb = skb;

here as well.

> + /* restore default tx buffer type: FEC_TXBUF_T_SKB */
> + txq->tx_buf[i].type = FEC_TXBUF_T_SKB;

Seems error prone. It would be safer to explicitly set it next to
assigning .skb/.xdp.

Andrew