Re: [PATCH net-next 1/2] net: stmmac: Add PCS_LYNX as a dependency for the whole driver

From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Maxime Chevallier <maxime.chevallier@bootlin.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
	davem@davemloft.net, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, alexis.lothore@bootlin.com,
	thomas.petazzoni@bootlin.com, Andrew Lunn <andrew@lunn.ch>,
	Jakub Kicinski <kuba@kernel.org>,
	Eric Dumazet <edumazet@google.com>,
	Paolo Abeni <pabeni@redhat.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Vladimir Oltean <vladimir.oltean@nxp.com>,
	Ioana Ciornei <ioana.ciornei@nxp.com>,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Jose Abreu <joabreu@synopsys.com>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Simon Horman <simon.horman@corigine.com>
Subject: Re: [PATCH net-next 1/2] net: stmmac: Add PCS_LYNX as a dependency for the whole driver
Date: Tue, 6 Jun 2023 11:40:17 +0100	[thread overview]
Message-ID: <ZH8NEW3bDwAoACfg@shell.armlinux.org.uk> (raw)
In-Reply-To: <ZH8LxGIvHd+B1eNm@shell.armlinux.org.uk>

On Tue, Jun 06, 2023 at 11:34:44AM +0100, Russell King (Oracle) wrote:
> > diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> > index fa07b0d50b46..1801f8cc8413 100644
> > --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> > +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> > @@ -940,9 +940,6 @@ static struct phylink_pcs *stmmac_mac_select_pcs(struct phylink_config *config,
> >  	if (priv->hw->xpcs)
> >  		return &priv->hw->xpcs->pcs;
> >  
> > -	if (priv->hw->lynx_pcs)
> > -		return priv->hw->lynx_pcs;
> > -
> 
> This hunk is completely wrong... but I guess you spotted that anyway.

Replacement...

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index e399fccbafe5..239c7e9ed41d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -494,6 +494,17 @@ static int socfpga_dwmac_probe(struct platform_device *pdev)
 	return ret;
 }
 
+static void socfpga_dwmac_remove(struct platform_device *pdev)
+{
+	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct stmmac_priv *priv = netdev_priv(ndev);
+	struct phylink_pcs *pcs = priv->hw->lynx_pcs;
+
+	stmmac_pltfr_remove(pdev);
+
+	lynx_pcs_destroy(pcs);
+}
+
 #ifdef CONFIG_PM_SLEEP
 static int socfpga_dwmac_resume(struct device *dev)
 {
@@ -565,7 +576,7 @@ MODULE_DEVICE_TABLE(of, socfpga_dwmac_match);
 
 static struct platform_driver socfpga_dwmac_driver = {
 	.probe  = socfpga_dwmac_probe,
-	.remove_new = stmmac_pltfr_remove,
+	.remove_new = socfpga_dwmac_remove,
 	.driver = {
 		.name           = "socfpga-dwmac",
 		.pm		= &socfpga_dwmac_pm_ops,
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index c784a6731f08..3db1cb0fd160 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -665,9 +665,6 @@ int stmmac_mdio_unregister(struct net_device *ndev)
 	if (priv->hw->xpcs)
 		xpcs_destroy(priv->hw->xpcs);
 
-	if (priv->hw->lynx_pcs)
-		lynx_pcs_destroy(priv->hw->lynx_pcs);
-
 	mdiobus_unregister(priv->mii);
 	priv->mii->priv = NULL;
 	mdiobus_free(priv->mii);

-- 
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