netdev - [PATCH v3 net-next 05/10] net: dsa: felix: perform teardown in reverse order of setup

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Date:   Fri,  8 Jan 2021 19:59:45 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     netdev@...r.kernel.org
Cc:     alexandre.belloni@...tlin.com, andrew@...n.ch,
        f.fainelli@...il.com, vivien.didelot@...il.com,
        alexandru.marginean@....com, claudiu.manoil@....com,
        xiaoliang.yang_1@....com, hongbo.wang@....com, kuba@...nel.org,
        jiri@...nulli.us, idosch@...sch.org, UNGLinuxDriver@...rochip.com
Subject: [PATCH v3 net-next 05/10] net: dsa: felix: perform teardown in reverse order of setup

From: Vladimir Oltean <vladimir.oltean@....com>

In general it is desirable that cleanup is the reverse process of setup.
In this case I am not seeing any particular issue, but with the
introduction of devlink-sb for felix, a non-obvious decision had to be
made as to where to put its cleanup method. When there's a convention in
place, that decision becomes obvious.

Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
Changes in v3:
None.

Changes in v2:
None.

 drivers/net/dsa/ocelot/felix.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index 79d0508e5910..42770a86e871 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -639,14 +639,13 @@ static void felix_teardown(struct dsa_switch *ds)
 	struct felix *felix = ocelot_to_felix(ocelot);
 	int port;
 
-	if (felix->info->mdio_bus_free)
-		felix->info->mdio_bus_free(ocelot);
-
+	if (ocelot->ptp)
+		ocelot_deinit_timestamp(ocelot);
+	ocelot_deinit(ocelot);
 	for (port = 0; port < ocelot->num_phys_ports; port++)
 		ocelot_deinit_port(ocelot, port);
-	ocelot_deinit_timestamp(ocelot);
-	/* stop workqueue thread */
-	ocelot_deinit(ocelot);
+	if (felix->info->mdio_bus_free)
+		felix->info->mdio_bus_free(ocelot);
 }
 
 static int felix_hwtstamp_get(struct dsa_switch *ds, int port,
-- 
2.25.1