From: Jakub Kicinski <kuba@kernel.org>
To: Maxime Chevallier <maxime.chevallier@bootlin.com>
Cc: Zxyan Zhu <zxyan0222@gmail.com>,
netdev@vger.kernel.org, Andrew Lunn <andrew+netdev@lunn.ch>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Russell King <linux@armlinux.org.uk>,
Russell King <rmk+kernel@armlinux.org.uk>,
Serge Semin <fancer.lancer@gmail.com>,
Romain Gantois <romain.gantois@bootlin.com>,
Hariprasad Kelam <hkelam@marvell.com>,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next v2 0/2] net: stmmac: Fix PHY attach when custom PCS is in use
Date: Tue, 28 Jul 2026 19:12:05 -0700 [thread overview]
Message-ID: <20260728191205.53e347c0@kernel.org> (raw)
In-Reply-To: <f14a1712-8315-4e64-b23b-ac00d7f82c3a@bootlin.com>
On Mon, 27 Jul 2026 08:49:11 +0200 Maxime Chevallier wrote:
> On 7/26/26 15:26, Zxyan Zhu wrote:
> > This series fixes the issue where stmmac platforms using a custom PCS
> > via the pcs_init callback fail to probe when no phy-handle is specified
> > in the device tree.
> >
> > Patch 1 is Russell King's phylink patch that relaxes phylink_expects_phy()
> > to allow PHYs to be attached in 802.3z inband mode.
> >
> > Patch 2 skips the PHY attach in stmmac when a custom PCS is already
> > configured via priv->hw->phylink_pcs, avoiding the "no phy found" error
> > for platforms that manage link state entirely through the PCS.
>
> I've tested this series on the board that saw the regression from Russell's
> first attempt, and now with the associated stmmac patch, it works :)
Both Sashikos see a risk of regression here, could you TAL and confirm
it's not real / unlikely?
prev parent reply other threads:[~2026-07-29 2:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-26 13:26 [PATCH net-next v2 0/2] net: stmmac: Fix PHY attach when custom PCS is in use Zxyan Zhu
2026-07-26 13:26 ` [PATCH net-next v2 1/2] net: phylink: allow PHYs to be attached in 802.3z inband mode Zxyan Zhu
2026-07-26 13:26 ` [PATCH net-next v2 2/2] net: stmmac: Skip PHY attach if custom PCS is in use Zxyan Zhu
2026-07-29 6:22 ` Maxime Chevallier
2026-07-27 6:49 ` [PATCH net-next v2 0/2] net: stmmac: Fix PHY attach when " Maxime Chevallier
2026-07-29 2:12 ` Jakub Kicinski [this message]
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