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Message-ID: <b3b50731-a364-425b-a0aa-c68c9f0f272a@gmail.com>
Date: Tue, 13 Feb 2024 15:16:36 -0800
From: Florian Fainelli <f.fainelli@...il.com>
To: Pawel Dembicki <paweldembicki@...il.com>, netdev@...r.kernel.org
Cc: linus.walleij@...aro.org, Russell King <linux@...linux.org.uk>,
Andrew Lunn <andrew@...n.ch>, Vladimir Oltean <olteanv@...il.com>,
"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Claudiu Manoil <claudiu.manoil@....com>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
UNGLinuxDriver@...rochip.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v4 01/15] net: dsa: vsc73xx: use
read_poll_timeout instead delay loop
On 2/13/24 14:03, Pawel Dembicki wrote:
> This commit switches delay loop to read_poll_timeout macro during
> Arbiter empty check in adjust link function.
>
> As Russel King suggested:
>
> "This [change] avoids the issue that on the last iteration, the code reads
> the register, test it, find the condition that's being waiting for is
> false, _then_ waits and end up printing the error message - that last
> wait is rather useless, and as the arbiter state isn't checked after
> waiting, it could be that we had success during the last wait."
>
> It also remove one short msleep delay.
>
> Suggested-by: Russell King <linux@...linux.org.uk>
> Signed-off-by: Pawel Dembicki <paweldembicki@...il.com>
> Reviewed-by: Andrew Lunn <andrew@...n.ch>
Reviewed-by: Florian Fainelli <florian.fainelli@...adcom.com>
--
Florian
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