netdev - [PATCH net-next,v3] ipvlan: implement .parse_protocol hook function in ipvlan_header

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Message-ID: <20231202130438.2266343-1-shaozhengchao@huawei.com>
Date: Sat, 2 Dec 2023 21:04:38 +0800
From: Zhengchao Shao <shaozhengchao@...wei.com>
To: <netdev@...r.kernel.org>, <davem@...emloft.net>, <edumazet@...gle.com>,
	<kuba@...nel.org>, <pabeni@...hat.com>
CC: <willemb@...gle.com>, <luwei32@...wei.com>, <shaozhengchao@...wei.com>,
	<willemdebruijn.kernel@...il.com>, <weiyongjun1@...wei.com>,
	<yuehaibing@...wei.com>
Subject: [PATCH net-next,v3] ipvlan: implement .parse_protocol hook function in ipvlan_header_ops

The .parse_protocol hook function in the ipvlan_header_ops structure is
not implemented. As a result, when the AF_PACKET family is used to send
packets, skb->protocol will be set to 0.
Ipvlan is a device of type ARPHRD_ETHER (ether_setup). Therefore, use
eth_header_parse_protocol function to obtain the protocol.

Signed-off-by: Zhengchao Shao <shaozhengchao@...wei.com>
Reviewed-by: Willem de Bruijn <willemb@...gle.com>
---
v3: remove Fixes tag, it fixes nothing
v2: modify commit info and add Fixes tag
---
 drivers/net/ipvlan/ipvlan_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index 57c79f5f2991..f28fd7b6b708 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -387,6 +387,7 @@ static const struct header_ops ipvlan_header_ops = {
 	.parse		= eth_header_parse,
 	.cache		= eth_header_cache,
 	.cache_update	= eth_header_cache_update,
+	.parse_protocol	= eth_header_parse_protocol,
 };
 
 static void ipvlan_adjust_mtu(struct ipvl_dev *ipvlan, struct net_device *dev)
-- 
2.34.1