openwrt/target/linux/generic/pending-5.15/704-04-v6.4-net-mvneta-move-tso_build_hdr-into-mvneta_tso_put_hd.patch

From 210ca75d4949f1ace8ea53a75148806cc28224a0 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <[email protected]>
Date: Mon, 3 Apr 2023 19:30:35 +0100
Subject: [PATCH 4/5] net: mvneta: move tso_build_hdr() into
 mvneta_tso_put_hdr()

Move tso_build_hdr() into mvneta_tso_put_hdr() so that all the TSO
header building code is in one place.

Signed-off-by: Russell King (Oracle) <[email protected]>
---
 drivers/net/ethernet/marvell/mvneta.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2592,19 +2592,24 @@ err_drop_frame:
 	return rx_done;
 }
 
-static inline void
-mvneta_tso_put_hdr(struct sk_buff *skb, struct mvneta_tx_queue *txq)
+static void mvneta_tso_put_hdr(struct sk_buff *skb, struct mvneta_tx_queue *txq,
+			       struct tso_t *tso, int size, bool is_last)
 {
-	int hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+	int tso_offset, hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
 	struct mvneta_tx_buf *buf = &txq->buf[txq->txq_put_index];
 	struct mvneta_tx_desc *tx_desc;
+	char *hdr;
+
+	tso_offset = txq->txq_put_index * TSO_HEADER_SIZE;
+
+	hdr = txq->tso_hdrs + tso_offset;
+	tso_build_hdr(skb, hdr, tso, size, is_last);
 
 	tx_desc = mvneta_txq_next_desc_get(txq);
 	tx_desc->data_size = hdr_len;
 	tx_desc->command = mvneta_skb_tx_csum(skb);
 	tx_desc->command |= MVNETA_TXD_F_DESC;
-	tx_desc->buf_phys_addr = txq->tso_hdrs_phys +
-				 txq->txq_put_index * TSO_HEADER_SIZE;
+	tx_desc->buf_phys_addr = txq->tso_hdrs_phys + tso_offset;
 	buf->type = MVNETA_TYPE_TSO;
 	buf->skb = NULL;
 
@@ -2697,17 +2702,12 @@ static int mvneta_tx_tso(struct sk_buff
 
 	total_len = skb->len - hdr_len;
 	while (total_len > 0) {
-		char *hdr;
-
 		data_left = min_t(int, skb_shinfo(skb)->gso_size, total_len);
 		total_len -= data_left;
 		desc_count++;
 
 		/* prepare packet headers: MAC + IP + TCP */
-		hdr = txq->tso_hdrs + txq->txq_put_index * TSO_HEADER_SIZE;
-		tso_build_hdr(skb, hdr, &tso, data_left, total_len == 0);
-
-		mvneta_tso_put_hdr(skb, txq);
+		mvneta_tso_put_hdr(skb, txq, &tso, data_left, total_len == 0);
 
 		while (data_left > 0) {
 			int size;