linux-kernel - Re: [lkp-robot] [ipv6] 2b760fcf5c: WARNING:suspicious_RCU

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Message-ID: <CANn89iLdB6AUUf4qY0tcNrk3vsdm_A_+r1ebMOfbZBWtb=ysMQ@mail.gmail.com>
Date:   Fri, 13 Oct 2017 07:10:19 -0700
From:   Eric Dumazet <edumazet@...gle.com>
To:     Wei Wang <weiwan@...gle.com>
Cc:     kernel test robot <xiaolong.ye@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        Martin KaFai Lau <kafai@...com>,
        LKML <linux-kernel@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>, LKP <lkp@...org>
Subject: Re: [lkp-robot] [ipv6] 2b760fcf5c: WARNING:suspicious_RCU_usage

On Thu, Oct 12, 2017 at 10:09 PM, Wei Wang <weiwan@...gle.com> wrote:
>
> This warning should be fixed by later commit 66f5d6ce53e6 ("ipv6:
> replace rwlock with rcu and spinlock in fib6_table").
> But by this commit, rcu is not yet used in ip6_pol_route(). (Sorry
> that I missed this earlier.) Not sure what to do here to fix this
> particular warning for this commit.

Hi Wei

There is nothing special to be done, if the current tree is all good.

Such a major patch series being done without a single temp 'bug' would
have been quite a challenge.

Thanks !