Symbol: TF_WILL_SACK
sys/netinet/tcp_input.c
3197
tp->t_flags |= TF_WILL_SACK;
sys/netinet/tcp_syncache.c
726
tp->t_flags |= TF_WILL_SACK;
sys/netinet/tcp_var.h
409
#define TCP_SACK_ENABLED(tp) (tp->t_flags & TF_WILL_SACK)