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由 Isaku Yamahata 提交于
ipgre_tunnel_xmit() parses network header as IP unconditionally. But transmitting packets are not always IP packet. For example such packet can be sent by packet socket with sockaddr_ll.sll_protocol set. So make the function check if skb->protocol is IP. Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp> Acked-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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