linux-kernel - Re: [PATCH net-next] net: dsa: qca8k: Fix inconsistent use of jiffies vs milliseconds

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Message-ID: <87195b12-6dfa-4778-b0c0-39f3a64a399e@lunn.ch>
Date: Mon, 16 Dec 2024 10:21:12 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Vladimir Oltean <olteanv@...il.com>
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Christian Marangi <ansuelsmth@...il.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] net: dsa: qca8k: Fix inconsistent use of
 jiffies vs milliseconds

On Mon, Dec 16, 2024 at 01:13:34AM +0200, Vladimir Oltean wrote:
> On Sun, Dec 15, 2024 at 05:43:55PM +0000, Andrew Lunn wrote:
> > wait_for_complete_timeout() expects a timeout in jiffies. With the
> > driver, some call sites converted QCA8K_ETHERNET_TIMEOUT to jiffies,
> > others did not. Make the code consistent by changes the #define to
> > include a call to msecs_to_jiffies, and remove all other calls to
> > msecs_to_jiffies.
> > 
> > Signed-off-by: Andrew Lunn <andrew@...n.ch>
> > ---
> 
> If my calculations are correct, for CONFIG_HZ=100, 5 jiffies last 50 ms.
> So, assuming that configuration, the patch would be _decreasing_ the timeout
> from 50 ms to 5 ms. The change should be tested to confirm it's enough.
> Christian, could you do that?

I've have an qca8k system now, and have tested this patch. However, a
Tested-by: from Christian would be very welcome.

	Andrew