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Date: Thu, 30 Apr 2020 23:02:14 -0700 From: Cong Wang <xiyou.wangcong@...il.com> To: Taehee Yoo <ap420073@...il.com> Cc: Netdev <netdev@...r.kernel.org>, syzbot <syzbot+aaa6fa4949cc5d9b7b25@...kaller.appspotmail.com>, Dmitry Vyukov <dvyukov@...gle.com> Subject: Re: [Patch net-next 1/2] net: partially revert dynamic lockdep key changes On Thu, Apr 30, 2020 at 12:40 AM Taehee Yoo <ap420073@...il.com> wrote: > > +static void vlan_dev_set_lockdep_one(struct net_device *dev, > > + struct netdev_queue *txq, > > + void *_subclass) > > +{ > > + lockdep_set_class_and_subclass(&txq->_xmit_lock, > > + &vlan_netdev_xmit_lock_key, > > + *(int *)_subclass); > > I think lockdep_set_class() is enough. > How do you think about it? Good catch. I overlooked this one. Is lockdep_set_class() safe for vlan stacked on vlan? Thanks.
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