ld: error: undefined symbol: tcp_lro_flush_all
>>> referenced by lio_droq.c
>>>               lio_droq.o:(lio_droq_process_packets)

ld: error: undefined symbol: tcp_lro_rx
>>> referenced by lio_core.c
>>>               lio_core.o:(lio_push_packet)

ld: error: undefined symbol: tcp_lro_init
>>> referenced by lio_main.c
>>>               lio_main.o:(lio_attach)

ld: error: undefined symbol: tcp_lro_free
>>> referenced by lio_main.c
>>>               lio_main.o:(lio_attach)
>>> referenced by lio_main.c
>>>               lio_main.o:(lio_destroy_nic_device)
*** [kernel] Error code 1