Symbol: TCP_WSCALE_SEEN
sys/netpfil/ipfilter/netinet/ip_state.c
1905
td->td_winflags |= TCP_WSCALE_SEEN|
sys/netpfil/ipfilter/netinet/ip_state.c
2214
(TCP_WSCALE_SEEN|TCP_WSCALE_FIRST))) {