From: Andrew Lunn <andrew@lunn.ch>
To: "Ahmed S. Darwish" <a.darwish@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>, Will Deacon <will@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
"Paul E. McKenney" <paulmck@kernel.org>,
"Sebastian A. Siewior" <bigeasy@linutronix.de>,
Steven Rostedt <rostedt@goodmis.org>,
LKML <linux-kernel@vger.kernel.org>,
Florian Fainelli <f.fainelli@gmail.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
Russell King <linux@armlinux.org.uk>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org
Subject: Re: [PATCH v2 2/6] net: phy: fixed_phy: Remove unused seqcount
Date: Wed, 3 Jun 2020 18:19:05 +0200 [thread overview]
Message-ID: <20200603161905.GE869823@lunn.ch> (raw)
In-Reply-To: <20200603144949.1122421-3-a.darwish@linutronix.de>
On Wed, Jun 03, 2020 at 04:49:45PM +0200, Ahmed S. Darwish wrote:
> Commit bf7afb29d545 ("phy: improve safety of fixed-phy MII register
> reading") protected the fixed PHY status with a sequence counter.
>
> Two years later, commit d2b977939b18 ("net: phy: fixed-phy: remove
> fixed_phy_update_state()") removed the sequence counter's write side
> critical section -- neutralizing its read side retry loop.
>
> Remove the unused seqcount.
>
> Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
next prev parent reply other threads:[~2020-06-03 16:19 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-03 14:49 [PATCH v2 0/6] seqlock: seqcount_t call sites bugfixes Ahmed S. Darwish
2020-06-03 14:49 ` Ahmed S. Darwish
2020-06-03 14:49 ` [PATCH v2 1/6] net: core: device_rename: Use rwsem instead of a seqcount Ahmed S. Darwish
2020-06-05 14:11 ` Sasha Levin
2020-06-03 14:49 ` [PATCH v2 2/6] net: phy: fixed_phy: Remove unused seqcount Ahmed S. Darwish
2020-06-03 16:19 ` Andrew Lunn [this message]
2020-06-03 14:49 ` [PATCH v2 3/6] u64_stats: Document writer non-preemptibility requirement Ahmed S. Darwish
2020-06-03 14:49 ` [PATCH v2 4/6] net: mdiobus: Disable preemption upon u64_stats update Ahmed S. Darwish
2020-06-03 14:49 ` [PATCH v2 5/6] block: nr_sects_write(): Disable preemption on seqcount write Ahmed S. Darwish
2020-06-05 3:22 ` Jens Axboe
2020-06-05 14:10 ` Sasha Levin
2020-06-03 14:49 ` [PATCH v2 6/6] dma-buf: Remove custom seqcount lockdep class key Ahmed S. Darwish
2020-06-03 14:49 ` Ahmed S. Darwish
2020-06-04 8:49 ` Daniel Vetter
2020-06-04 8:49 ` Daniel Vetter
2020-06-04 7:28 ` [PATCH v2 0/6] seqlock: seqcount_t call sites bugfixes Daniel Vetter
2020-06-04 7:28 ` Daniel Vetter
2020-06-04 8:41 ` Ahmed S. Darwish
2020-06-04 8:41 ` Ahmed S. Darwish
2020-06-04 22:50 ` David Miller
2020-06-04 22:50 ` David Miller
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