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authorVladimir Oltean <vladimir.oltean@nxp.com>2020-09-18 04:07:30 +0300
committerDavid S. Miller <davem@davemloft.net>2020-09-18 23:52:34 +0300
commite5fb512d81d021b7c7a0c2547c3dafb9de759285 (patch)
treeb0fc2f9e06094d458c05a7017ea47408350fa271 /drivers
parent22cdb493de54ca4cb161553376f7b02fcaca2328 (diff)
downloadlinux-e5fb512d81d021b7c7a0c2547c3dafb9de759285.tar.xz
net: mscc: ocelot: deinitialize only initialized ports
Currently mscc_ocelot_init_ports() will skip initializing a port when it doesn't have a phy-handle, so the ocelot->ports[port] pointer will be NULL. Take this into consideration when tearing down the driver, and add a new function ocelot_deinit_port() to the switch library, mirror of ocelot_init_port(), which needs to be called by the driver for all ports it has initialized. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/dsa/ocelot/felix.c3
-rw-r--r--drivers/net/ethernet/mscc/ocelot.c16
-rw-r--r--drivers/net/ethernet/mscc/ocelot_vsc7514.c2
3 files changed, 13 insertions, 8 deletions
diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index 66da447c4096..01427cd08448 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -643,10 +643,13 @@ static void felix_teardown(struct dsa_switch *ds)
{
struct ocelot *ocelot = ds->priv;
struct felix *felix = ocelot_to_felix(ocelot);
+ int port;
if (felix->info->mdio_bus_free)
felix->info->mdio_bus_free(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);
diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index 83eb7c325061..8518e1d60da4 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -1550,18 +1550,18 @@ EXPORT_SYMBOL(ocelot_init);
void ocelot_deinit(struct ocelot *ocelot)
{
- struct ocelot_port *port;
- int i;
-
cancel_delayed_work(&ocelot->stats_work);
destroy_workqueue(ocelot->stats_queue);
mutex_destroy(&ocelot->stats_lock);
-
- for (i = 0; i < ocelot->num_phys_ports; i++) {
- port = ocelot->ports[i];
- skb_queue_purge(&port->tx_skbs);
- }
}
EXPORT_SYMBOL(ocelot_deinit);
+void ocelot_deinit_port(struct ocelot *ocelot, int port)
+{
+ struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+ skb_queue_purge(&ocelot_port->tx_skbs);
+}
+EXPORT_SYMBOL(ocelot_deinit_port);
+
MODULE_LICENSE("Dual MIT/GPL");
diff --git a/drivers/net/ethernet/mscc/ocelot_vsc7514.c b/drivers/net/ethernet/mscc/ocelot_vsc7514.c
index 252c49b5f22b..e02fb8bfab63 100644
--- a/drivers/net/ethernet/mscc/ocelot_vsc7514.c
+++ b/drivers/net/ethernet/mscc/ocelot_vsc7514.c
@@ -908,6 +908,8 @@ static void mscc_ocelot_release_ports(struct ocelot *ocelot)
if (!ocelot_port)
continue;
+ ocelot_deinit_port(ocelot, port);
+
priv = container_of(ocelot_port, struct ocelot_port_private,
port);