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From: David Miller <davem@davemloft.net>
To: kurt@linutronix.de
Cc: anirudh@xilinx.com, John.Linn@xilinx.com,
	michal.simek@xilinx.com, radhey.shyam.pandey@xilinx.com,
	andrew@lunn.ch, yuehaibing@huawei.com, netdev@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] net: xilinx_emaclite: recheck condition after timeout in mdio_wait()
Date: Tue, 30 Oct 2018 11:25:28 -0700 (PDT)	[thread overview]
Message-ID: <20181030.112528.308459967263600648.davem@davemloft.net> (raw)
In-Reply-To: <20181030093139.10226-3-kurt@linutronix.de>

From: Kurt Kanzenbach <kurt@linutronix.de>
Date: Tue, 30 Oct 2018 10:31:39 +0100

> The function could report a false positive if it gets preempted between reading
> the XEL_MDIOCTRL_OFFSET register and checking for the timeout.  In such a case,
> the condition has to be rechecked to avoid false positives.
> 
> Therefore, check for expected condition even after the timeout occurred.
> 
> Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>

Same objections as your previous patch.

This isn't fixing anything.

  parent reply	other threads:[~2018-10-30 18:25 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-30  9:31 [PATCH 0/2] net: xlinx: mdio: recheck condition after timeout Kurt Kanzenbach
2018-10-30  9:31 ` [PATCH 1/2] net: axienet: recheck condition after timeout in mdio_wait() Kurt Kanzenbach
2018-10-30 18:25   ` David Miller
2018-10-31 13:06     ` Kurt Kanzenbach
2018-11-05  9:16     ` Sebastian Andrzej Siewior
2018-10-30  9:31 ` [PATCH 2/2] net: xilinx_emaclite: " Kurt Kanzenbach
2018-10-30 12:10   ` Andrew Lunn
2018-10-30 12:58     ` Radhey Shyam Pandey
2018-10-30 18:25   ` David Miller [this message]
2018-10-30 12:08 ` [PATCH 0/2] net: xlinx: mdio: recheck condition after timeout Andrew Lunn
2018-10-30 13:47   ` Kurt Kanzenbach

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