linux-kernel - [PATCH v2 net-next 3/5] net: fec: remove struct fec_enet_priv_txrx

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Message-Id: <20251117101921.1862427-4-wei.fang@nxp.com>
Date: Mon, 17 Nov 2025 18:19:19 +0800
From: Wei Fang <wei.fang@....com>
To: shenwei.wang@....com,
	xiaoning.wang@....com,
	andrew+netdev@...n.ch,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	eric@...int.com,
	Frank.Li@....com
Cc: imx@...ts.linux.dev,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 net-next 3/5] net: fec: remove struct fec_enet_priv_txrx_info

The struct fec_enet_priv_txrx_info has three members: offset, page and
skb. The offset is only initialized in the driver and is not used, the
skb is never initialized and used in the driver. The both will not be
used in the future. Therefore, replace struct fec_enet_priv_txrx_info
bedirectly with struct page.

Signed-off-by: Wei Fang <wei.fang@....com>
---
 drivers/net/ethernet/freescale/fec.h      |  8 +-------
 drivers/net/ethernet/freescale/fec_main.c | 11 +++++------
 2 files changed, 6 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index 8e438f6e7ec4..c5bbc2c16a4f 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h
@@ -528,12 +528,6 @@ struct bufdesc_prop {
 	unsigned char dsize_log2;
 };
 
-struct fec_enet_priv_txrx_info {
-	int	offset;
-	struct	page *page;
-	struct  sk_buff *skb;
-};
-
 enum {
 	RX_XDP_REDIRECT = 0,
 	RX_XDP_PASS,
@@ -573,7 +567,7 @@ struct fec_enet_priv_tx_q {
 
 struct fec_enet_priv_rx_q {
 	struct bufdesc_prop bd;
-	struct  fec_enet_priv_txrx_info rx_skb_info[RX_RING_SIZE];
+	struct page *rx_buf[RX_RING_SIZE];
 
 	/* page_pool */
 	struct page_pool *page_pool;
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 9cf579a8ac0f..1408e3e6650a 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1655,8 +1655,7 @@ static int fec_enet_update_cbd(struct fec_enet_priv_rx_q *rxq,
 	if (unlikely(!new_page))
 		return -ENOMEM;
 
-	rxq->rx_skb_info[index].page = new_page;
-	rxq->rx_skb_info[index].offset = FEC_ENET_XDP_HEADROOM;
+	rxq->rx_buf[index] = new_page;
 	phys_addr = page_pool_get_dma_addr(new_page) + FEC_ENET_XDP_HEADROOM;
 	bdp->cbd_bufaddr = cpu_to_fec32(phys_addr);
 
@@ -1834,7 +1833,7 @@ fec_enet_rx_queue(struct net_device *ndev, u16 queue_id, int budget)
 		ndev->stats.rx_bytes += pkt_len;
 
 		index = fec_enet_get_bd_index(bdp, &rxq->bd);
-		page = rxq->rx_skb_info[index].page;
+		page = rxq->rx_buf[index];
 		cbd_bufaddr = bdp->cbd_bufaddr;
 		if (fec_enet_update_cbd(rxq, bdp, index)) {
 			ndev->stats.rx_dropped++;
@@ -3309,7 +3308,8 @@ static void fec_enet_free_buffers(struct net_device *ndev)
 	for (q = 0; q < fep->num_rx_queues; q++) {
 		rxq = fep->rx_queue[q];
 		for (i = 0; i < rxq->bd.ring_size; i++)
-			page_pool_put_full_page(rxq->page_pool, rxq->rx_skb_info[i].page, false);
+			page_pool_put_full_page(rxq->page_pool, rxq->rx_buf[i],
+						false);
 
 		for (i = 0; i < XDP_STATS_TOTAL; i++)
 			rxq->stats[i] = 0;
@@ -3443,8 +3443,7 @@ fec_enet_alloc_rxq_buffers(struct net_device *ndev, unsigned int queue)
 		phys_addr = page_pool_get_dma_addr(page) + FEC_ENET_XDP_HEADROOM;
 		bdp->cbd_bufaddr = cpu_to_fec32(phys_addr);
 
-		rxq->rx_skb_info[i].page = page;
-		rxq->rx_skb_info[i].offset = FEC_ENET_XDP_HEADROOM;
+		rxq->rx_buf[i] = page;
 		bdp->cbd_sc = cpu_to_fec16(BD_ENET_RX_EMPTY);
 
 		if (fep->bufdesc_ex) {
-- 
2.34.1