tcp_ip_v4_csum 1371 drivers/net/hyperv/hyperv_net.h u8 tcp_ip_v4_csum; tcp_ip_v4_csum 1218 drivers/net/hyperv/rndis_filter.c offloads.tcp_ip_v4_csum = NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;