netdev - [PATCH RFC net-next 5/7] net: dsa: avoid DT validation for drivers which provide default config

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Message-Id: <E1pex8a-00Dvo3-G7@rmk-PC.armlinux.org.uk>
Date:   Wed, 22 Mar 2023 12:00:16 +0000
From:   "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Daniel Scally <djrscally@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Jakub Kicinski <kuba@...nel.org>, linux-acpi@...r.kernel.org,
        netdev@...r.kernel.org, Paolo Abeni <pabeni@...hat.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Vladimir Oltean <olteanv@...il.com>
Subject: [PATCH RFC net-next 5/7] net: dsa: avoid DT validation for drivers
 which provide default config

When a DSA driver (e.g. mv88e6xxx) provides a default configuration,
avoid validating the DT description as missing elements will be
provided by the DSA driver.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 net/dsa/port.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/dsa/port.c b/net/dsa/port.c
index c30e3a7d2145..23d9970c02d3 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -1951,6 +1951,9 @@ static void dsa_shared_port_validate_of(struct dsa_port *dp,
 	*missing_phy_mode = false;
 	*missing_link_description = false;
 
+	if (dp->ds->ops->port_get_fwnode)
+		return;
+
 	if (of_get_phy_mode(dn, &mode)) {
 		*missing_phy_mode = true;
 		dev_err(ds->dev,
-- 
2.30.2