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Date:   Thu, 8 Sep 2022 21:21:48 -0400
From:   Sasha Levin <>
To:     Csókás Bence <>
        "David S . Miller" <>,,,,
Subject: Re: [PATCH AUTOSEL 5.19 24/33] fec: Restart PPS after link state

On Wed, Aug 31, 2022 at 03:02:46PM +0200, Csókás Bence wrote:
>On 2022. 08. 30. 19:18, Sasha Levin wrote:
>>From: Csókás Bence <>
>>[ Upstream commit f79959220fa5fbda939592bf91c7a9ea90419040 ]
>>On link state change, the controller gets reset,
>>causing PPS to drop out and the PHC to lose its
>>time and calibration. So we restart it if needed,
>>restoring calibration and time registers.
>There is an ongoing investigation on netdev@ about a potential kernel 
>panic on kernels newer than 5.12 with this patch applied. Please hold 
>off on backporting to 5.19 until the bugfix is applied to upstream.

Will do.


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