netdev - [PATCH net-next 0/3] net: stmmac: phylink PCS conversion part 3 (dodgy stuff)

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Message-ID: <aP03aQLADMg-J_4W@shell.armlinux.org.uk>
Date: Sat, 25 Oct 2025 21:47:37 +0100
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>
Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Alexis Lothoré <alexis.lothore@...tlin.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	Boon Khai Ng <boon.khai.ng@...era.com>,
	Daniel Machon <daniel.machon@...rochip.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, Furong Xu <0x1207@...il.com>,
	Jacob Keller <jacob.e.keller@...el.com>,
	Jakub Kicinski <kuba@...nel.org>,
	"Jan Petrous (OSS)" <jan.petrous@....nxp.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-stm32@...md-mailman.stormreply.com,
	Maxime Chevallier <maxime.chevallier@...tlin.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>, netdev@...r.kernel.org,
	Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>,
	Vladimir Oltean <olteanv@...il.com>,
	Yu-Chun Lin <eleanor15x@...il.com>
Subject: [PATCH net-next 0/3] net: stmmac: phylink PCS conversion part 3
 (dodgy stuff)

Hi,

This series is currently the last of the phylink PCS conversion for
stmmac. This series contains changes that will cause potential breakage,
so I suggest to netdev maintainers that it is only applied if there is
a significant response from testers using the PCS.

Paritcularly, dwmac-qcom-ethqos.c users need to test this, since this
platform glue driver manipulates the PCS state. Patch 2 is designed to
print a warning to the kernel log if this glue driver calls
stmmac_pcs_ctrl_ane() to set the AN state differently to how phylink
has set it. If this happens, we need to do some pre-work to prevent
these prints.

 .../net/ethernet/stmicro/stmmac/dwmac1000_core.c   |  7 +++++-
 drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c  |  7 +++++-
 drivers/net/ethernet/stmicro/stmmac/stmmac_pcs.c   | 29 +++++++++++++++++++---
 drivers/net/ethernet/stmicro/stmmac/stmmac_pcs.h   |  8 +++++-
 4 files changed, 44 insertions(+), 7 deletions(-)

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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