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Date: Mon, 5 Oct 2026 18:23:22 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Lorenzo Bianconi <lorenzo.bianconi@oss.qualcomm.com>
Cc: Anirudh Srinivasan <asrinivasan@oss.tenstorrent.com>, Maxime Chevallier
 <maxime.chevallier@bootlin.com>, Andrew Lunn <andrew+netdev@lunn.ch>,
 "David S. Miller" <davem@davemloft.net>, Eric Dumazet
 <edumazet@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Maxime Coquelin
 <mcoquelin.stm32@gmail.com>, Alexandre Torgue
 <alexandre.torgue@foss.st.com>, Richard Cochran <richardcochran@gmail.com>,
 Jose Abreu <Jose.Abreu@synopsys.com>, netdev@vger.kernel.org,
 linux-stm32@st-md-mailman.stormreply.com,
 linux-arm-kernel@lists.infradead.org, Drew Fustini <fustini@kernel.org>,
 Jisheng Zhang <jszhang@kernel.org>, linux-riscv@lists.infradead.org
Subject: Re: [PATCH net v3] net: stmmac: propagate PTP addend and system
 time programming errors
Message-ID: <20261005182322.2bc023e8@kernel.org>
In-Reply-To: <asQcQIh56MV1OJur@lore-desk>
References: <20260929-stmmac-ptp-added-systime-error-v3-1-ddd6afe936b4@oss.qualcomm.com>
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On Mon, 5 Oct 2026 23:53:04 +0200 Lorenzo Bianconi wrote:
> based on the reported error, stmmac_init_tstamp_counter() fails with
> -ETIMEDOUT. In particular this can occurs if:
> 
> stmmac_init_tstamp_counter()
>  -> stmmac_update_subsecond_increment() -> stmmac_config_addend() -> -ETIMEDOUT
>  -> stmmac_init_systime() -> -ETIMEDOUT  
> 
> I guess we should understand which one is failing and why it is failing.

I'm going to revert, this shouldn't have been applied to net in 
the first place. Let's continue the investigation but v4 should
be tagged with net-next.