[PATCH net-next v4 3/8] net: lan966x: Flush fdb workqueue when port is leaving a bridge.
From: Horatiu Vultur <horatiu.vultur@microchip.com>
Date: 2022-08-17 19:31:29
Also in:
lkml
Subsystem:
microchip lan966x ethernet driver, networking drivers, the rest · Maintainers:
Horatiu Vultur, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Whenever a port leaves a bridge, flush the workqueue of the FDB work. Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> --- drivers/net/ethernet/microchip/lan966x/lan966x_fdb.c | 9 +++++---- drivers/net/ethernet/microchip/lan966x/lan966x_main.h | 1 + .../net/ethernet/microchip/lan966x/lan966x_switchdev.c | 7 ++++--- 3 files changed, 10 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_fdb.c b/drivers/net/ethernet/microchip/lan966x/lan966x_fdb.c
index c760f73c0621..5142e7c0de31 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_fdb.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_fdb.c@@ -128,6 +128,11 @@ void lan966x_fdb_deinit(struct lan966x *lan966x) lan966x_fdb_purge_entries(lan966x); } +void lan966x_fdb_flush_workqueue(struct lan966x *lan966x) +{ + flush_workqueue(lan966x->fdb_work); +} + static void lan966x_fdb_port_event_work(struct lan966x_fdb_event_work *fdb_work) { struct switchdev_notifier_fdb_info *fdb_info;
@@ -205,8 +210,6 @@ static void lan966x_fdb_event_work(struct work_struct *work) lan966x_fdb_bridge_event_work(fdb_work); kfree(fdb_work->fdb_info.addr); - dev_put(fdb_work->dev); - dev_put(fdb_work->orig_dev); kfree(fdb_work); }
@@ -244,8 +247,6 @@ int lan966x_handle_fdb(struct net_device *dev, goto err_addr_alloc; ether_addr_copy((u8 *)fdb_work->fdb_info.addr, fdb_info->addr); - dev_hold(dev); - dev_hold(orig_dev); queue_work(lan966x->fdb_work, &fdb_work->work); break;
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.h b/drivers/net/ethernet/microchip/lan966x/lan966x_main.h
index 2787055c1847..b02c1c803945 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.h
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.h@@ -369,6 +369,7 @@ void lan966x_fdb_write_entries(struct lan966x *lan966x, u16 vid); void lan966x_fdb_erase_entries(struct lan966x *lan966x, u16 vid); int lan966x_fdb_init(struct lan966x *lan966x); void lan966x_fdb_deinit(struct lan966x *lan966x); +void lan966x_fdb_flush_workqueue(struct lan966x *lan966x); int lan966x_handle_fdb(struct net_device *dev, struct net_device *orig_dev, unsigned long event, const void *ctx,
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_switchdev.c b/drivers/net/ethernet/microchip/lan966x/lan966x_switchdev.c
index df2bee678559..d9fc6a9a3da1 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_switchdev.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_switchdev.c@@ -320,9 +320,10 @@ static int lan966x_port_prechangeupper(struct net_device *dev, { struct lan966x_port *port = netdev_priv(dev); - if (netif_is_bridge_master(info->upper_dev) && !info->linking) - switchdev_bridge_port_unoffload(port->dev, port, - NULL, NULL); + if (netif_is_bridge_master(info->upper_dev) && !info->linking) { + switchdev_bridge_port_unoffload(port->dev, port, NULL, NULL); + lan966x_fdb_flush_workqueue(port->lan966x); + } return NOTIFY_DONE; }
--
2.33.0