tcpi_rtt 236 include/uapi/linux/tcp.h __u32 tcpi_rtt; tcpi_rtt 512 net/dccp/ccids/ccid3.c info->tcpi_rtt = ccid3_hc_tx_sk(sk)->tx_rtt; tcpi_rtt 3290 net/ipv4/tcp.c info->tcpi_rtt = tp->srtt_us >> 3;