}
        dccp_tx_hist_add_entry(&hctx->ccid3hctx_hist, packet);
 
-       packet->dccphtx_tstamp = ktime_to_timeval(ktime_get_real());
+       packet->dccphtx_tstamp = ktime_get_real();
        packet->dccphtx_seqno  = dccp_sk(sk)->dccps_gss;
        packet->dccphtx_rtt    = hctx->ccid3hctx_rtt;
        packet->dccphtx_sent   = 1;
        struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
        struct ccid3_options_received *opt_recv;
        struct dccp_tx_hist_entry *packet;
-       ktime_t now, t_hist;
+       ktime_t now;
        unsigned long t_nfb;
        u32 pinv, r_sample;
 
                        hctx->ccid3hctx_p = 1000000 / pinv;
 
                now = ktime_get_real();
-               t_hist = timeval_to_ktime(packet->dccphtx_tstamp);
                /*
                 * Calculate new round trip sample as per [RFC 3448, 4.3] by
                 *      R_sample  =  (now - t_recvdata) - t_elapsed
                 */
-               r_sample = dccp_sample_rtt(sk, now, &t_hist);
+               r_sample = dccp_sample_rtt(sk, now, &packet->dccphtx_tstamp);
 
                /*
                 * Update RTT estimate by