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Date:   Tue, 18 Oct 2022 11:44:15 +0200
From:   Pavel Machek <pavel@denx.de>
To:     Sasha Levin <sashal@kernel.org>
Cc:     linux-kernel@vger.kernel.org, stable@vger.kernel.org,
        Vladimir Oltean <vladimir.oltean@nxp.com>,
        Jakub Kicinski <kuba@kernel.org>, vinicius.gomes@intel.com,
        jhs@mojatatu.com, xiyou.wangcong@gmail.com, jiri@resnulli.us,
        davem@davemloft.net, edumazet@google.com, pabeni@redhat.com,
        netdev@vger.kernel.org
Subject: Re: [PATCH AUTOSEL 5.10 22/34] net/sched: taprio: taprio_dump and
 taprio_change are protected by rtnl_mutex
Message-ID: <20221018094415.GF1264@duo.ucw.cz>
References: <20221009222129.1218277-1-sashal@kernel.org>
 <20221009222129.1218277-22-sashal@kernel.org>
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Hi!

> From: Vladimir Oltean <vladimir.oltean@nxp.com>
>=20
> [ Upstream commit 18cdd2f0998a4967b1fff4c43ed9aef049e42c39 ]
>=20
> Since the writer-side lock is taken here, we do not need to open an RCU
> read-side critical section, instead we can use rtnl_dereference() to
> tell lockdep we are serialized with concurrent writes.

This is cleanup, not a bugfix. We should not have it in 5.10.

Best regards,
								Pavel
--=20
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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