commit 3399fa15ae28610c1b288b573c4233a42c48f762
Author: Amar Subramanyam via Linuxptp-devel <linuxptp-devel@lists.sourceforge.net>
Date:   Wed May 26 12:24:06 2021 +0300

    Log optimization for ptp4l in jbod and client only mode (clientOnly=1 and boundary_clock_jbod=1)
    
    The LISTENING port prints continuously
    "selected best master clock 000000.0000.000003
    updating UTC offset to 37"
    
    We limited the log such that now it prints only when there is a
    change in the best-master clock.
    
    Signed-off-by: Amar Subramanyam <asubramanyam@altiostar.com>
    Signed-off-by: Karthikkumar Valoor <kvaloor@altiostar.com>
    Signed-off-by: Ramana Reddy <rreddy@altiostar.com>

diff --git a/clock.c b/clock.c
index e545a9b..d428ae2 100644
--- a/clock.c
+++ b/clock.c
@@ -705,7 +705,8 @@ static void clock_update_slave(struct clock *c)
 	if (c->tds.currentUtcOffset < c->utc_offset) {
 		pr_warning("running in a temporal vortex");
 	}
-	if ((c->tds.flags & UTC_OFF_VALID && c->tds.flags & TIME_TRACEABLE) ||
+	if (((c->tds.flags & UTC_OFF_VALID && c->tds.flags & TIME_TRACEABLE) &&
+	    (c->tds.currentUtcOffset != c->utc_offset)) ||
 	    (c->tds.currentUtcOffset > c->utc_offset)) {
 		pr_info("updating UTC offset to %d", c->tds.currentUtcOffset);
 		c->utc_offset = c->tds.currentUtcOffset;
@@ -1939,14 +1940,6 @@ static void handle_state_decision_event(struct clock *c)
 		best_id = c->dds.clockIdentity;
 	}
 
-	if (cid_eq(&best_id, &c->dds.clockIdentity)) {
-		pr_notice("selected local clock %s as best master",
-			  cid2str(&best_id));
-	} else {
-		pr_notice("selected best master clock %s",
-			  cid2str(&best_id));
-	}
-
 	if (!cid_eq(&best_id, &c->best_id)) {
 		clock_freq_est_reset(c);
 		tsproc_reset(c->tsproc, 1);
@@ -1957,6 +1950,13 @@ static void handle_state_decision_event(struct clock *c)
 		c->master_local_rr = 1.0;
 		c->nrr = 1.0;
 		fresh_best = 1;
+		if (cid_eq(&best_id, &c->dds.clockIdentity)) {
+			pr_notice("selected local clock %s as best master",
+					cid2str(&best_id));
+		} else {
+			pr_notice("selected best master clock %s",
+					cid2str(&best_id));
+		}
 	}
 
 	c->best = best;

commit 766baf345cd4fb025d186f9c9bea5276aba398bc
Author: Amar Subramanyam via Linuxptp-devel <linuxptp-devel@lists.sourceforge.net>
Date:   Wed May 26 12:24:07 2021 +0300

    Log optimization for ptp4l in jbod and client only mode (clientOnly=1 and boundary_clock_jbod=1)
    
    The port other than SLAVE (LISTENING port) prints an error
    "port 1: master state recommended in slave only mode
    ptp4l[1205469.356]: port 1: defaultDS.priority1 probably misconfigured"
    for every ANNOUNCE RECEIPT Timeout.
    
    This log is printed when the event EV_RS_MASTER is thrown
    in clientOnly mode. But single port clientOnly mode will never
    hit this event instead EV_RS_GRAND_MASTER will be hit.
    EV_RS_MASTER is thrown when clientOnly=1 and boundary_clock_jbod=1
    which results in continuous printing. So EV_RS_MASTER check when
    clientOnly=1 to print this error can be avoided.
    
    Signed-off-by: Amar Subramanyam <asubramanyam@altiostar.com>
    Signed-off-by: Karthikkumar Valoor <kvaloor@altiostar.com>
    Signed-off-by: Ramana Reddy <rreddy@altiostar.com>

diff --git a/port.c b/port.c
index 250d46d..b5b775f 100644
--- a/port.c
+++ b/port.c
@@ -2536,7 +2536,7 @@ void port_dispatch(struct port *p, enum fsm_event event, int mdiff)
 static void bc_dispatch(struct port *p, enum fsm_event event, int mdiff)
 {
 	if (clock_slave_only(p->clock)) {
-		if (event == EV_RS_MASTER || event == EV_RS_GRAND_MASTER) {
+		if (event == EV_RS_GRAND_MASTER) {
 			port_slave_priority_warning(p);
 		}
 	}