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Date:   Mon,  3 Jun 2019 00:39:18 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     f.fainelli@...il.com, vivien.didelot@...il.com, andrew@...n.ch,
        davem@...emloft.net, richardcochran@...il.com,
        john.stultz@...aro.org, tglx@...utronix.de, sboyd@...nel.org
Cc:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        Vladimir Oltean <olteanv@...il.com>
Subject: [PATCH v2 net-next 02/10] net: dsa: Add teardown callback for drivers

This is helpful for e.g. draining per-driver (not per-port) tagger
queues.

Signed-off-by: Vladimir Oltean <olteanv@...il.com>
---
Changes in v2:

Patch is new.

 include/net/dsa.h | 1 +
 net/dsa/dsa2.c    | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/include/net/dsa.h b/include/net/dsa.h
index a7f36219904f..4033e0677be4 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -361,6 +361,7 @@ struct dsa_switch_ops {
 						  int port);
 
 	int	(*setup)(struct dsa_switch *ds);
+	void	(*teardown)(struct dsa_switch *ds);
 	u32	(*get_phy_flags)(struct dsa_switch *ds, int port);
 
 	/*
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index b70befe8a3c8..5bd3e9a4c709 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -407,6 +407,9 @@ static int dsa_switch_setup(struct dsa_switch *ds)
 
 static void dsa_switch_teardown(struct dsa_switch *ds)
 {
+	if (ds->ops->teardown)
+		ds->ops->teardown(ds);
+
 	if (ds->slave_mii_bus && ds->ops->phy_read)
 		mdiobus_unregister(ds->slave_mii_bus);
 
-- 
2.17.1

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