[DCCP]: Convert dccps_timestamp_time 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, 7 insertions, 9 deletions

diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index fda2148d8c85..3a4b96becfc4 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -215,6 +215,7 @@ struct dccp_so_feat {
 #ifdef __KERNEL__
 
 #include <linux/in.h>
+#include <linux/ktime.h>
 #include <linux/list.h>
 #include <linux/uio.h>
 #include <linux/workqueue.h>
@@ -498,7 +499,7 @@ struct dccp_sock {
         __u64                           dccps_gar;
         __be32                          dccps_service;
         struct dccp_service_list        *dccps_service_list;
-        struct timeval                  dccps_timestamp_time;
+        ktime_t                         dccps_timestamp_time;
         __u32                           dccps_timestamp_echo;
         __u16                           dccps_l_ack_ratio;
         __u16                           dccps_r_ack_ratio;
diff --git a/net/dccp/options.c b/net/dccp/options.c
index 34d536d5f1a1..95b75d8354ff 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -158,7 +158,7 @@ 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,
@@ -405,14 +405,12 @@ 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 +436,7 @@ 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;
 }