netdev - [PATCH net-next v0] net: phy-c45: Fix genphy_c45_ethtool_set

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Message-Id: <20230618180130.4016802-1-andrew@lunn.ch>
Date: Sun, 18 Jun 2023 20:01:30 +0200
From: Andrew Lunn <andrew@...n.ch>
To: netdev <netdev@...r.kernel.org>
Cc: Russell King <rmk+kernel@...linux.org.uk>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Andrew Lunn <andrew@...n.ch>
Subject: [PATCH net-next v0] net: phy-c45: Fix genphy_c45_ethtool_set_eee description

The text has been cut/paste from  genphy_c45_ethtool_get_eee but not
changed to reflect it performs set.

Additionally, extend the comment. This function implements the logic
that eee_enabled has global control over EEE. When eee_enabled is
false, no link modes will be advertised, and as a result, the MAC
should not transmit LPI.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
 drivers/net/phy/phy-c45.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/phy/phy-c45.c b/drivers/net/phy/phy-c45.c
index fee514b96ab1..d1d7cf34ac0b 100644
--- a/drivers/net/phy/phy-c45.c
+++ b/drivers/net/phy/phy-c45.c
@@ -1425,12 +1425,15 @@ int genphy_c45_ethtool_get_eee(struct phy_device *phydev,
 EXPORT_SYMBOL(genphy_c45_ethtool_get_eee);
 
 /**
- * genphy_c45_ethtool_set_eee - get EEE supported and status
+ * genphy_c45_ethtool_set_eee - set EEE supported and status
  * @phydev: target phy_device struct
  * @data: ethtool_eee data
  *
- * Description: it reportes the Supported/Advertisement/LP Advertisement
- * capabilities.
+ * Description: it set the Supported/Advertisement/LP Advertisement
+ * capabilities. If eee_enabled is false, no links modes are
+ * advertised, but the previously advertised link modes are
+ * retained. This allows EEE to be enabled/disabled in a none
+ * destructive way.
  */
 int genphy_c45_ethtool_set_eee(struct phy_device *phydev,
 			       struct ethtool_eee *data)
-- 
2.40.1