[DCCP]: Convert ccid3hcrx_tstamp_last_ack to ktime_t

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 15 insertions, 9 deletions

diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
index 42d3dbc1874e..63051eb1779d 100644
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -876,7 +876,6 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
         struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
         const struct dccp_options_received *opt_recv;
         struct dccp_rx_hist_entry *packet;
-        struct timeval now;
         u32 p_prev, r_sample, rtt_prev;
         int loss, payload_size;
 
@@ -888,7 +887,9 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
         case DCCP_PKT_ACK:
                 if (hcrx->ccid3hcrx_state == TFRC_RSTATE_NO_DATA)
                         return;
-        case DCCP_PKT_DATAACK:
+        case DCCP_PKT_DATAACK: {
+                struct timeval now;
+
                 if (opt_recv->dccpor_timestamp_echo == 0)
                         break;
                 rtt_prev = hcrx->ccid3hcrx_rtt;
@@ -906,6 +907,7 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
                                        dccp_role(sk), sk, hcrx->ccid3hcrx_rtt,
                                        opt_recv->dccpor_elapsed_time);
                 break;
+        }
         case DCCP_PKT_DATA:
                 break;
         default: /* We're not interested in other packet types, move along */
@@ -936,18 +938,21 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
                 ccid3_hc_rx_send_feedback(sk);
                 ccid3_hc_rx_set_state(sk, TFRC_RSTATE_DATA);
                 return;
-        case TFRC_RSTATE_DATA:
+        case TFRC_RSTATE_DATA: {
+                ktime_t now;
+
                 hcrx->ccid3hcrx_bytes_recv += payload_size;
                 if (loss)
                         break;
 
-                dccp_timestamp(sk, &now);
-                if ((timeval_delta(&now, &hcrx->ccid3hcrx_tstamp_last_ack) -
-                     (suseconds_t)hcrx->ccid3hcrx_rtt) >= 0) {
+                now = ktime_get_real();
+                if ((ktime_us_delta(now, hcrx->ccid3hcrx_tstamp_last_ack) -
+                     (s64)hcrx->ccid3hcrx_rtt) >= 0) {
                         hcrx->ccid3hcrx_tstamp_last_ack = now;
                         ccid3_hc_rx_send_feedback(sk);
                 }
                 return;
+        }
         case TFRC_RSTATE_TERM:
                 DCCP_BUG("%s(%p) - Illegal state TERM", dccp_role(sk), sk);
                 return;
@@ -984,8 +989,9 @@ static int ccid3_hc_rx_init(struct ccid *ccid, struct sock *sk)
         hcrx->ccid3hcrx_state = TFRC_RSTATE_NO_DATA;
         INIT_LIST_HEAD(&hcrx->ccid3hcrx_hist);
         INIT_LIST_HEAD(&hcrx->ccid3hcrx_li_hist);
-        dccp_timestamp(sk, &hcrx->ccid3hcrx_tstamp_last_ack);
-        hcrx->ccid3hcrx_tstamp_last_feedback = hcrx->ccid3hcrx_tstamp_last_ack;
+        hcrx->ccid3hcrx_tstamp_last_ack = ktime_get_real();
+        hcrx->ccid3hcrx_tstamp_last_feedback =
+                ktime_to_timeval(hcrx->ccid3hcrx_tstamp_last_ack);
         hcrx->ccid3hcrx_s   = 0;
         hcrx->ccid3hcrx_rtt = 0;
         return 0;
diff --git a/net/dccp/ccids/ccid3.h b/net/dccp/ccids/ccid3.h
index dcb6b677348b..a69cf887e3e3 100644
--- a/net/dccp/ccids/ccid3.h
+++ b/net/dccp/ccids/ccid3.h
@@ -153,7 +153,7 @@ struct ccid3_hc_rx_sock {
         enum ccid3_hc_rx_states         ccid3hcrx_state:8;
         u32                             ccid3hcrx_bytes_recv;
         struct timeval                  ccid3hcrx_tstamp_last_feedback;
-        struct timeval                  ccid3hcrx_tstamp_last_ack;
+        ktime_t                         ccid3hcrx_tstamp_last_ack;
         struct list_head                ccid3hcrx_hist;
         struct list_head                ccid3hcrx_li_hist;
         u16                             ccid3hcrx_s;