teamd: add port_master_ifindex_changed for link_watch_port_watch_ops

This is a follow up of Commit b6f63db ("teamd: add
port_master_ifindex_changed for teamd_event_watch_ops")
to fix the same issue in it.

The issue is a race between option change event and ifinfo
(master_ifindex) change event, so wherever a option change
function tries to iterate tdport by teamd_for_each_tdport,
the same thing should be done in its master_ifindex change
function, including link_watch_port_watch_ops.

The fix has been verified in one customer's env where it
appeared no arp requests coming out on the only state-up
tdport prior to this patch.

Reported-by: Michal Tesar <mtesar@redhat.com>
Fixes: b6f63db ("teamd: add port_master_ifindex_changed for teamd_event_watch_ops")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>

teamd/teamd_link_watch.c

@@ -450,10 +450,19 @@ static int link_watch_enabled_option_changed(struct teamd_context *ctx,
 	return link_watch_refresh_forced_send(ctx);
 }
 
+
+static int link_watch_port_master_ifindex_changed(struct teamd_context *ctx,
+						  struct teamd_port *tdport,
+						  void *priv)
+{
+	return link_watch_refresh_forced_send(ctx);
+}
+
 static const struct teamd_event_watch_ops link_watch_port_watch_ops = {
 	.port_added = link_watch_event_watch_port_added,
 	.port_removed = link_watch_event_watch_port_removed,
 	.port_link_changed = link_watch_event_watch_port_link_changed,
+	.port_master_ifindex_changed = link_watch_port_master_ifindex_changed,
 	.option_changed = link_watch_enabled_option_changed,
 	.option_changed_match_name = "enabled",
 };