netdev - [net-next PATCH v2 03/10] net: ravb: Drop IP protocol check from RX csum verification

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Message-Id: <20241015133634.193-4-paul.barker.ct@bp.renesas.com>
Date: Tue, 15 Oct 2024 14:36:27 +0100
From: Paul Barker <paul.barker.ct@...renesas.com>
To: Sergey Shtylyov <s.shtylyov@....ru>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>
Cc: Paul Barker <paul.barker.ct@...renesas.com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Niklas Söderlund <niklas.soderlund+renesas@...natech.se>,
	Biju Das <biju.das.jz@...renesas.com>,
	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>,
	netdev@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [net-next PATCH v2 03/10] net: ravb: Drop IP protocol check from RX csum verification

We do not need to confirm that the protocol is IPv4. If the hardware
encounters an unsupported protocol, it will set the checksum value to
0xFFFF.

Reviewed-by: Sergey Shtylyov <s.shtylyov@....ru>
Signed-off-by: Paul Barker <paul.barker.ct@...renesas.com>
---
 drivers/net/ethernet/renesas/ravb_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 43db69d03684..4bc2532706c2 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -781,8 +781,7 @@ static void ravb_rx_csum_gbeth(struct sk_buff *skb)
 	else
 		skb_trim(skb, skb->len - 2 * sizeof(__sum16));
 
-	/* TODO: IPV6 Rx checksum */
-	if (skb->protocol == htons(ETH_P_IP) && !csum_proto)
+	if (!csum_proto)
 		skb->ip_summed = CHECKSUM_UNNECESSARY;
 }
 
-- 
2.43.0