is_fou 2302 include/linux/netdevice.h u8 is_fou:1; is_fou 5491 net/core/dev.c NAPI_GRO_CB(skb)->is_fou = 0; is_fou 247 net/ipv4/fou.c NAPI_GRO_CB(skb)->is_fou = 1; is_fou 439 net/ipv4/fou.c NAPI_GRO_CB(skb)->is_fou = 1; is_fou 147 net/ipv4/gre_offload.c if ((greh->flags & GRE_CSUM) && NAPI_GRO_CB(skb)->is_fou)