1 files changed, 7 insertions, 40 deletions

diff --git a/net/dccp/options.c b/net/dccp/options.c
index 34d536d5f1a1..d361b5533309 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -29,16 +29,6 @@ int sysctl_dccp_feat_ack_ratio	      = DCCPF_INITIAL_ACK_RATIO;
 int sysctl_dccp_feat_send_ack_vector = DCCPF_INITIAL_SEND_ACK_VECTOR;
 int sysctl_dccp_feat_send_ndp_count  = DCCPF_INITIAL_SEND_NDP_COUNT;
 
-void dccp_minisock_init(struct dccp_minisock *dmsk)
-{
-	dmsk->dccpms_sequence_window = sysctl_dccp_feat_sequence_window;
-	dmsk->dccpms_rx_ccid	     = sysctl_dccp_feat_rx_ccid;
-	dmsk->dccpms_tx_ccid	     = sysctl_dccp_feat_tx_ccid;
-	dmsk->dccpms_ack_ratio	     = sysctl_dccp_feat_ack_ratio;
-	dmsk->dccpms_send_ack_vector = sysctl_dccp_feat_send_ack_vector;
-	dmsk->dccpms_send_ndp_count  = sysctl_dccp_feat_send_ndp_count;
-}
-
 static u32 dccp_decode_value_var(const unsigned char *bf, const u8 len)
 {
 	u32 value = 0;
@@ -158,7 +148,7 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
 			opt_recv->dccpor_timestamp = ntohl(*(__be32 *)value);
 
 			dp->dccps_timestamp_echo = opt_recv->dccpor_timestamp;
-			dccp_timestamp(sk, &dp->dccps_timestamp_time);
+			dp->dccps_timestamp_time = ktime_get_real();
 
 			dccp_pr_debug("%s rx opt: TIMESTAMP=%u, ackno=%llu\n",
 				      dccp_role(sk), opt_recv->dccpor_timestamp,
@@ -189,7 +179,7 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
 			else
 				elapsed_time = ntohl(*(__be32 *)(value + 4));
 
-			dccp_pr_debug_cat(", ELAPSED_TIME=%d\n", elapsed_time);
+			dccp_pr_debug_cat(", ELAPSED_TIME=%u\n", elapsed_time);
 
 			/* Give precedence to the biggest ELAPSED_TIME */
 			if (elapsed_time > opt_recv->dccpor_elapsed_time)
@@ -370,29 +360,9 @@ int dccp_insert_option_elapsed_time(struct sock *sk, struct sk_buff *skb,
 
 EXPORT_SYMBOL_GPL(dccp_insert_option_elapsed_time);
 
-void dccp_timestamp(const struct sock *sk, struct timeval *tv)
-{
-	const struct dccp_sock *dp = dccp_sk(sk);
-
-	do_gettimeofday(tv);
-	tv->tv_sec  -= dp->dccps_epoch.tv_sec;
-	tv->tv_usec -= dp->dccps_epoch.tv_usec;
-
-	while (tv->tv_usec < 0) {
-		tv->tv_sec--;
-		tv->tv_usec += USEC_PER_SEC;
-	}
-}
-
-EXPORT_SYMBOL_GPL(dccp_timestamp);
-
 int dccp_insert_option_timestamp(struct sock *sk, struct sk_buff *skb)
 {
-	struct timeval tv;
-	__be32 now;
-
-	dccp_timestamp(sk, &tv);
-	now = htonl(timeval_usecs(&tv) / 10);
+	__be32 now = htonl(dccp_timestamp());
 	/* yes this will overflow but that is the point as we want a
 	 * 10 usec 32 bit timer which mean it wraps every 11.9 hours */
 
@@ -405,14 +375,12 @@ static int dccp_insert_option_timestamp_echo(struct sock *sk,
 					     struct sk_buff *skb)
 {
 	struct dccp_sock *dp = dccp_sk(sk);
-	struct timeval now;
 	__be32 tstamp_echo;
-	u32 elapsed_time;
 	int len, elapsed_time_len;
 	unsigned char *to;
-
-	dccp_timestamp(sk, &now);
-	elapsed_time = timeval_delta(&now, &dp->dccps_timestamp_time) / 10;
+	const suseconds_t delta = ktime_us_delta(ktime_get_real(),
+						 dp->dccps_timestamp_time);
+	u32 elapsed_time = delta / 10;
 	elapsed_time_len = dccp_elapsed_time_len(elapsed_time);
 	len = 6 + elapsed_time_len;
 
@@ -438,8 +406,7 @@ static int dccp_insert_option_timestamp_echo(struct sock *sk,
 	}
 
 	dp->dccps_timestamp_echo = 0;
-	dp->dccps_timestamp_time.tv_sec = 0;
-	dp->dccps_timestamp_time.tv_usec = 0;
+	dp->dccps_timestamp_time = ktime_set(0, 0);
 	return 0;
 }