netdev - [PATCH net-next] net: phylink: add debug print for empty posssible

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Message-Id: <E1s15rq-00AHye-22@rmk-PC.armlinux.org.uk>
Date: Sun, 28 Apr 2024 15:51:02 +0100
From: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To: Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	netdev@...r.kernel.org
Subject: [PATCH net-next] net: phylink: add debug print for empty
 posssible_interfaces

Add a debugging print in phylink_validate_phy() when we detect that the
PHY has not supplied a possible_interfaces bitmap.

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

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 0e692a3bcf1a..b7e5c669dc8e 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1838,6 +1838,9 @@ static int phylink_validate_phy(struct phylink *pl, struct phy_device *phy,
 					     interfaces);
 	}
 
+	phylink_dbg(pl, "PHY %s doesn't supply possible interfaces\n",
+		    phydev_name(phy));
+
 	/* Check whether we would use rate matching for the proposed interface
 	 * mode.
 	 */
-- 
2.30.2