insmod ip_gre 出问题

gouya

[root@WEB ipv4]# insmod ./ip_gre.o
./ip_gre.o: unresolved symbol ip_finish_output_Rsmp_d1121cf2
./ip_gre.o: unresolved symbol unregister_netdev_Rsmp_d23a054e
./ip_gre.o: unresolved symbol ip_route_output_key_Rsmp_148c0f2b
./ip_gre.o: unresolved symbol ip_mc_inc_group_Rsmp_9365a5d2
./ip_gre.o: unresolved symbol netif_rx_Rsmp_a023a113
./ip_gre.o: unresolved symbol unregister_netdevice_Rsmp_87e339de
./ip_gre.o: unresolved symbol ip_mc_dec_group_Rsmp_295c203f
./ip_gre.o: unresolved symbol inet_add_protocol_Rsmp_f9810b36
./ip_gre.o: unresolved symbol __kfree_skb_Rsmp_63a98146
./ip_gre.o: unresolved symbol inetdev_by_index_Rsmp_170af604
./ip_gre.o: unresolved symbol skb_realloc_headroom_Rsmp_075d7929
./ip_gre.o: unresolved symbol sock_wfree_Rsmp_62e19457
./ip_gre.o: unresolved symbol register_netdevice_Rsmp_12f63280
./ip_gre.o: unresolved symbol __dev_get_by_index_Rsmp_50f65268
./ip_gre.o: unresolved symbol ip_fragment_Rsmp_28a20d10
./ip_gre.o: unresolved symbol register_netdev_Rsmp_c84968db
./ip_gre.o: unresolved symbol netdev_finish_unregister_Rsmp_4106b3fb
./ip_gre.o: unresolved symbol __dev_get_by_name_Rsmp_4b0d6792
./ip_gre.o: unresolved symbol __ip_select_ident_Rsmp_93a3ccf5
./ip_gre.o: unresolved symbol __pskb_pull_tail_Rsmp_5348ace9
./ip_gre.o: unresolved symbol inet_del_protocol_Rsmp_cdd2afc8
./ip_gre.o: unresolved symbol netdev_state_change_Rsmp_d7492624
./ip_gre.o: unresolved symbol in_dev_finish_destroy_Rsmp_1cde0ae2
./ip_gre.o: unresolved symbol irq_stat_Rsmp_82f5d8c1
./ip_gre.o: unresolved symbol skb_under_panic_Rsmp_1526828b
./ip_gre.o: unresolved symbol icmp_send_Rsmp_4a7fab5c
./ip_gre.o: unresolved symbol skb_checksum_Rsmp_0f1593ae