edt_ns            438 net/ipv4/tcp_bbr.c 	u64 now_ns, edt_ns, interval_us;
edt_ns            442 net/ipv4/tcp_bbr.c 	edt_ns = max(tp->tcp_wstamp_ns, now_ns);
edt_ns            443 net/ipv4/tcp_bbr.c 	interval_us = div_u64(edt_ns - now_ns, NSEC_PER_USEC);