linux-kernel - Re: [PATCH net] hv_netvsc: Fix a warning of suspicious RCU usage

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Message-ID: <20190806121242.141c2324@cakuba.netronome.com>
Date:   Tue, 6 Aug 2019 12:12:42 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Dexuan Cui <decui@...rosoft.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        "sashal@...nel.org" <sashal@...nel.org>,
        KY Srinivasan <kys@...rosoft.com>,
        Michael Kelley <mikelley@...rosoft.com>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "olaf@...fle.de" <olaf@...fle.de>,
        "apw@...onical.com" <apw@...onical.com>,
        "jasowang@...hat.com" <jasowang@...hat.com>,
        vkuznets <vkuznets@...hat.com>,
        "marcelo.cerri@...onical.com" <marcelo.cerri@...onical.com>
Subject: Re: [PATCH net] hv_netvsc: Fix a warning of suspicious RCU usage

On Tue, 6 Aug 2019 05:17:44 +0000, Dexuan Cui wrote:
> This fixes a warning of "suspicious rcu_dereference_check() usage"
> when nload runs.
> 
> Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>
> Signed-off-by: Dexuan Cui <decui@...rosoft.com>

Minor change in behaviour would perhaps be worth acknowledging in the
commit message (since you check ndev for NULL later now), and a Fixes
tag would be good.

But the looks pretty straightforward and correct!