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net: dsa: stop calling dev_hold in dsa_slave_fdb_event

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Now that we guarantee that SWITCHDEV_FDB_{ADD,DEL}_TO_DEVICE events have
finished executing by the time we leave our bridge upper interface,
we've established a stronger boundary condition for how long the
dsa_slave_switchdev_event_work() might run.

As such, it is no longer possible for DSA slave interfaces to become
unregistered, since they are still bridge ports.

So delete the unnecessary dev_hold() and dev_put().

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean 2021-10-26 12:25:56 +03:00 committed by David S. Miller
parent d7d0d423db
commit 425d19cede
1 changed files with 0 additions and 3 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

3
net/dsa/slave.c
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@ -2448,7 +2448,6 @@ static void dsa_slave_switchdev_event_work(struct work_struct *work)
break; break;
} }
dev_put(switchdev_work->dev);
kfree(switchdev_work); kfree(switchdev_work);
} }
@ -2521,8 +2520,6 @@ static int dsa_slave_fdb_event(struct net_device *dev,
switchdev_work->vid = fdb_info->vid; switchdev_work->vid = fdb_info->vid;
switchdev_work->host_addr = host_addr; switchdev_work->host_addr = host_addr;
/* Hold a reference for dsa_fdb_offload_notify */
dev_hold(dev);
dsa_schedule_work(&switchdev_work->work); dsa_schedule_work(&switchdev_work->work);
return 0; return 0;