linux-kernel - Re: [iwl-net v1 2/2] igb: Fix missing time sync events

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Date: Sat, 17 Feb 2024 08:55:16 -0800
From: Richard Cochran <richardcochran@...il.com>
To: Vinicius Costa Gomes <vinicius.gomes@...el.com>
Cc: intel-wired-lan@...ts.osuosl.org, sasha.neftin@...el.com,
	kurt@...utronix.de, anthony.l.nguyen@...el.com,
	jesse.brandeburg@...el.com, "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [iwl-net v1 2/2] igb: Fix missing time sync events

On Sat, Feb 17, 2024 at 07:05:07AM -0800, Richard Cochran wrote:

> Does setting ICR.Time_Sync[TXTS] also clear ICR.Time_Sync[RXTS] ?
> 
> That is what you seem to be saying.

Okay, so you really mean that if the _same_ bit becomes set between
the read and the acknowledgment, then that event will be missed,
right?

In that case, thank you for fixing this more than nine year old bug!

Acked-by: Richard Cochran <richardcochran@...il.com>