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authorCong Wang <xiyou.wangcong@gmail.com>2020-05-03 07:22:20 +0200
committerDavid S. Miller <davem@davemloft.net>2020-05-04 21:05:56 +0200
commite7511f560f5499c664c1ba9181c76044e2af578d (patch)
tree2178ea90424ff0805749aa003eeae6557d528799 /drivers/net/bonding/bond_main.c
parentnet: partially revert dynamic lockdep key changes (diff)
downloadlinux-e7511f560f5499c664c1ba9181c76044e2af578d.tar.xz
linux-e7511f560f5499c664c1ba9181c76044e2af578d.zip
bonding: remove useless stats_lock_key
After commit b3e80d44f5b1 ("bonding: fix lockdep warning in bond_get_stats()") the dynamic key is no longer necessary, as we compute nest level at run-time. So, we can just remove it to save some lockdep key entries. Test commands: ip link add bond0 type bond ip link add bond1 type bond ip link set bond0 master bond1 ip link set bond0 nomaster ip link set bond1 master bond0 Reported-and-tested-by: syzbot+aaa6fa4949cc5d9b7b25@syzkaller.appspotmail.com Cc: Dmitry Vyukov <dvyukov@google.com> Acked-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bonding/bond_main.c')
-rw-r--r--drivers/net/bonding/bond_main.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d01871321d22..baa93191dfdd 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4491,7 +4491,6 @@ static void bond_uninit(struct net_device *bond_dev)
list_del(&bond->bond_list);
- lockdep_unregister_key(&bond->stats_lock_key);
bond_debug_unregister(bond);
}
@@ -4896,8 +4895,6 @@ static int bond_init(struct net_device *bond_dev)
return -ENOMEM;
spin_lock_init(&bond->stats_lock);
- lockdep_register_key(&bond->stats_lock_key);
- lockdep_set_class(&bond->stats_lock, &bond->stats_lock_key);
netdev_lockdep_set_classes(bond_dev);
list_add_tail(&bond->bond_list, &bn->dev_list);