netdev - Re: [PATCH bpf-next v2] bpf/devmap: convert remaining READ_ONCE() to rcu_dereference

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Message-ID: <20210630000854.xfzf4rloihsiw2nf@kafai-mbp.dhcp.thefacebook.com>
Date:   Tue, 29 Jun 2021 17:08:54 -0700
From:   Martin KaFai Lau <kafai@...com>
To:     Toke Høiland-Jørgensen <toke@...hat.com>
CC:     <bpf@...r.kernel.org>, <netdev@...r.kernel.org>,
        Hangbin Liu <liuhangbin@...il.com>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Magnus Karlsson <magnus.karlsson@...il.com>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Jakub Kicinski <kuba@...nel.org>,
        kernel test robot <lkp@...el.com>
Subject: Re: [PATCH bpf-next v2] bpf/devmap: convert remaining READ_ONCE() to
 rcu_dereference_check()

On Tue, Jun 29, 2021 at 11:39:07AM +0200, Toke Høiland-Jørgensen wrote:
> There were a couple of READ_ONCE()-invocations left-over by the devmap RCU
> conversion. Convert these to rcu_dereference_check() as well to avoid
> complaints from sparse.
> 
> v2:
>  - Use rcu_dereference_check()
Acked-by: Martin KaFai Lau <kafai@...com>