netdev - [PATCH v2 RFC 5/5] net: phy: c45: change genphy_c45_ethtool_[get|set]

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Date: Sat, 6 Jan 2024 23:22:28 +0100
From: Heiner Kallweit <hkallweit1@...il.com>
To: Andrew Lunn <andrew@...n.ch>, Russell King <rmk+kernel@...linux.org.uk>,
 Jakub Kicinski <kuba@...nel.org>, Eric Dumazet <edumazet@...gle.com>,
 Paolo Abeni <pabeni@...hat.com>, David Miller <davem@...emloft.net>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH v2 RFC 5/5] net: phy: c45: change
 genphy_c45_ethtool_[get|set]_eee to use EEE linkmode bitmaps

Change genphy_c45_ethtool_[get|set]_eee to use EEE linkmode bitmaps.

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
 drivers/net/phy/phy-c45.c | 36 +++++++++++++-----------------------
 1 file changed, 13 insertions(+), 23 deletions(-)

diff --git a/drivers/net/phy/phy-c45.c b/drivers/net/phy/phy-c45.c
index adee5e712..cc05b59b8 100644
--- a/drivers/net/phy/phy-c45.c
+++ b/drivers/net/phy/phy-c45.c
@@ -1453,7 +1453,7 @@ int genphy_c45_ethtool_get_eee(struct phy_device *phydev,
 {
 	__ETHTOOL_DECLARE_LINK_MODE_MASK(adv) = {};
 	__ETHTOOL_DECLARE_LINK_MODE_MASK(lp) = {};
-	bool overflow = false, is_enabled;
+	bool is_enabled;
 	int ret;
 
 	ret = genphy_c45_eee_is_active(phydev, adv, lp, &is_enabled);
@@ -1462,17 +1462,9 @@ int genphy_c45_ethtool_get_eee(struct phy_device *phydev,
 
 	data->eee_enabled = is_enabled;
 	data->eee_active = ret;
-
-	if (!ethtool_convert_link_mode_to_legacy_u32(&data->supported,
-						     phydev->supported_eee))
-		overflow = true;
-	if (!ethtool_convert_link_mode_to_legacy_u32(&data->advertised, adv))
-		overflow = true;
-	if (!ethtool_convert_link_mode_to_legacy_u32(&data->lp_advertised, lp))
-		overflow = true;
-
-	if (overflow)
-		phydev_warn(phydev, "Not all supported or advertised EEE link modes were passed to the user space\n");
+	linkmode_copy(data->link_modes.supported, phydev->supported_eee);
+	linkmode_copy(data->link_modes.advertising, adv);
+	linkmode_copy(data->link_modes.lp_advertising, lp);
 
 	return 0;
 }
@@ -1495,24 +1487,22 @@ int genphy_c45_ethtool_set_eee(struct phy_device *phydev,
 	int ret;
 
 	if (data->eee_enabled) {
-		if (data->advertised) {
-			__ETHTOOL_DECLARE_LINK_MODE_MASK(adv);
+		unsigned long *adv = data->link_modes.advertising;
 
-			ethtool_convert_legacy_u32_to_link_mode(adv,
-								data->advertised);
-			linkmode_andnot(adv, adv, phydev->supported_eee);
-			if (!linkmode_empty(adv)) {
+		if (!linkmode_empty(adv)) {
+			__ETHTOOL_DECLARE_LINK_MODE_MASK(tmp);
+			bool unsupp;
+
+			unsupp = linkmode_andnot(tmp, adv, phydev->supported_eee);
+			if (unsupp) {
 				phydev_warn(phydev, "At least some EEE link modes are not supported.\n");
 				return -EINVAL;
 			}
-
-			ethtool_convert_legacy_u32_to_link_mode(phydev->advertising_eee,
-								data->advertised);
 		} else {
-			linkmode_copy(phydev->advertising_eee,
-				      phydev->supported_eee);
+			adv = phydev->supported_eee;
 		}
 
+		linkmode_copy(phydev->advertising_eee, adv);
 		phydev->eee_enabled = true;
 	} else {
 		phydev->eee_enabled = false;
-- 
2.43.0