From 070f2d7e264acd6316fc24092b7f51a18c75ac9c Mon Sep 17 00:00:00 2001 From: Kirill Tkhai Date: Fri, 23 Mar 2018 19:47:39 +0300 Subject: net: Drop NETDEV_UNREGISTER_FINAL Last user is gone after bdf5bd7f2132 "rds: tcp: remove register_netdevice_notifier infrastructure.", so we can remove this netdevice command. This allows to delete rtnl_lock() in netdev_run_todo(), which is hot path for net namespace unregistration. dev_change_net_namespace() and netdev_wait_allrefs() have rcu_barrier() before NETDEV_UNREGISTER_FINAL call, and the source commits say they were introduced to delemit the call with NETDEV_UNREGISTER, but this patch leaves them on the places, since they require additional analysis, whether we need in them for something else. Signed-off-by: Kirill Tkhai Signed-off-by: David S. Miller --- drivers/infiniband/hw/qedr/main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c index db4bf97c0e15..eb32abb0099a 100644 --- a/drivers/infiniband/hw/qedr/main.c +++ b/drivers/infiniband/hw/qedr/main.c @@ -90,8 +90,8 @@ static struct net_device *qedr_get_netdev(struct ib_device *dev, u8 port_num) dev_hold(qdev->ndev); /* The HW vendor's device driver must guarantee - * that this function returns NULL before the net device reaches - * NETDEV_UNREGISTER_FINAL state. + * that this function returns NULL before the net device has finished + * NETDEV_UNREGISTER state. */ return qdev->ndev; } -- cgit v1.2.3