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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Tue, 6 Jun 2023 11:40:17 +0100
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Maxime Chevallier <maxime.chevallier@...tlin.com>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>, davem@...emloft.net,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	alexis.lothore@...tlin.com, thomas.petazzoni@...tlin.com,
	Andrew Lunn <andrew@...n.ch>, Jakub Kicinski <kuba@...nel.org>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Vladimir Oltean <vladimir.oltean@....com>,
	Ioana Ciornei <ioana.ciornei@....com>,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Jose Abreu <joabreu@...opsys.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	Simon Horman <simon.horman@...igine.com>
Subject: Re: [PATCH net-next 1/2] net: stmmac: Add PCS_LYNX as a dependency
 for the whole driver

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);

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!