linux-kernel - [PATCH net] net: phylink: add missing supported link modes for the fixed-link

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Message-Id: <20251114052808.1129942-1-wei.fang@nxp.com>
Date: Fri, 14 Nov 2025 13:28:08 +0800
From: Wei Fang <wei.fang@....com>
To: linux@...linux.org.uk,
	andrew@...n.ch,
	hkallweit1@...il.com,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	eric@...int.com,
	maxime.chevallier@...tlin.com
Cc: imx@...ts.linux.dev,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH net] net: phylink: add missing supported link modes for the fixed-link

Pause, Asym_Pause and Autoneg bits are not set when pl->supported is
initialized, so these link modes will not work for the fixed-link.

Fixes: de7d3f87be3c ("net: phylink: Use phy_caps_lookup for fixed-link configuration")
Signed-off-by: Wei Fang <wei.fang@....com>
---
 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 9d7799ea1c17..918244308215 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -637,6 +637,9 @@ static int phylink_validate(struct phylink *pl, unsigned long *supported,
 
 static void phylink_fill_fixedlink_supported(unsigned long *supported)
 {
+	linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT, supported);
+	linkmode_set_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, supported);
+	linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, supported);
 	linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT, supported);
 	linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT, supported);
 	linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, supported);
-- 
2.34.1