1 files changed, 4 insertions, 1 deletions

diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 1585fa26488c..b63a82ccb2b2 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -86,10 +86,13 @@ extern void dccp_time_wait(struct sock *sk, int state, int timeo);
  */
 #define DCCP_RTO_MAX ((unsigned)(64 * HZ))
 
+/* DCCP base time resolution - 10 microseconds (RFC 4340, 13.1 ... 13.3) */
+#define DCCP_TIME_RESOLUTION    10
+
 /*
  * RTT sampling: sanity bounds and fallback RTT value from RFC 4340, section 3.4
  */
-#define DCCP_SANE_RTT_MIN       100
+#define DCCP_SANE_RTT_MIN       (10 * DCCP_TIME_RESOLUTION)
 #define DCCP_FALLBACK_RTT       (USEC_PER_SEC / 5)
 #define DCCP_SANE_RTT_MAX       (3 * USEC_PER_SEC)