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macvlan: implement .parse_protocol hook function in macvlan_hard_header_ops

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The .parse_protocol hook function in the macvlan_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.
Macvlan is a device of type ARPHRD_ETHER (ether_setup). Therefore, use
eth_header_parse_protocol function to obtain the protocol.

Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20231202130658.2266526-1-shaozhengchao@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Zhengchao Shao 2023-12-02 21:06:58 +08:00 committed by Paolo Abeni
parent 76ca216765
commit cb297cc5e1
1 changed files with 1 additions and 0 deletions
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drivers/net/macvlan.c
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@ -609,6 +609,7 @@ static const struct header_ops macvlan_hard_header_ops = {
.parse = eth_header_parse,
.cache = eth_header_cache,
.cache_update = eth_header_cache_update,
.parse_protocol = eth_header_parse_protocol,
};
static int macvlan_open(struct net_device *dev)