Re: [Linuxptp-devel] [PATCH] Set grandmasterIdentity to localClockIdentity

[Geva, Erez]

Hi,

I though gmPresent means an external clock, not own clock.

If the ptp4l looses sync, how can you have a grand master present?

Please explain.

Erez

-----Original Message-----
From: Joanna Yurdal <j...@trackman.com> 
Sent: Friday, 5 November 2021 12:04
To: linuxptp-devel@lists.sourceforge.net
Subject: [Linuxptp-devel] [PATCH] Set grandmasterIdentity to localClockIdentity

When ptp4l looses synchronization with remote grandmaster and local clock is 
selected, pmc commands "get time_status" and "time_status_np"
will return "gmPresent" set to false, same way as before synchronizing with the 
remote grandmaster

Signed-off-by: Joanna Yurdal <j...@trackman.com>
---
 clock.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/clock.c b/clock.c
index bbfd1a8..147bcb6 100644
--- a/clock.c
+++ b/clock.c
@@ -2001,6 +2001,7 @@ static void handle_state_decision_event(struct clock *c)
                if (cid_eq(&best_id, &c->dds.clockIdentity)) {
                        pr_notice("selected local clock %s as best master",
                                        cid2str(&best_id));
+                       c->dad.pds.grandmasterIdentity = c->dds.clockIdentity;
                } else {
                        pr_notice("selected best master clock %s",
                                        cid2str(&best_id));
--
2.25.1



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