netdev - [PATCH net] net: ethernet: xgbe: re-add aneg to supported features in PHY quirks

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <46521973-7738-4157-9f5e-0bb6f694acba@gmail.com>
Date: Sun, 12 Jan 2025 22:59:59 +0100
From: Heiner Kallweit <hkallweit1@...il.com>
To: Paolo Abeni <pabeni@...hat.com>, Jakub Kicinski <kuba@...nel.org>,
 David Miller <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Simon Horman <horms@...nel.org>, Andrew Lunn <andrew+netdev@...n.ch>
Cc: Andrew Lunn <andrew@...n.ch>,
 Russell King - ARM Linux <linux@...linux.org.uk>,
 "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH net] net: ethernet: xgbe: re-add aneg to supported features in
 PHY quirks

In 4.19, before the switch to linkmode bitmaps, PHY_GBIT_FEATURES
included feature bits for aneg and TP/MII ports.

				 SUPPORTED_TP | \
				 SUPPORTED_MII)

				 SUPPORTED_10baseT_Full)

				 SUPPORTED_100baseT_Full)

				 SUPPORTED_1000baseT_Full)

				 PHY_100BT_FEATURES | \
				 PHY_DEFAULT_FEATURES)

				 PHY_1000BT_FEATURES)

Referenced commit expanded PHY_GBIT_FEATURES, silently removing
PHY_DEFAULT_FEATURES. The removed part can be re-added by using
the new PHY_GBIT_FEATURES definition.
Not clear to me is why nobody seems to have noticed this issue.

I stumbled across this when checking what it takes to make
phy_10_100_features_array et al private to phylib.

Fixes: d0939c26c53a ("net: ethernet: xgbe: expand PHY_GBIT_FEAUTRES")
Cc: stable@...r.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
 drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c | 19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c
index 6a716337f..268399dfc 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c
@@ -923,7 +923,6 @@ static void xgbe_phy_free_phy_device(struct xgbe_prv_data *pdata)
 
 static bool xgbe_phy_finisar_phy_quirks(struct xgbe_prv_data *pdata)
 {
-	__ETHTOOL_DECLARE_LINK_MODE_MASK(supported) = { 0, };
 	struct xgbe_phy_data *phy_data = pdata->phy_data;
 	unsigned int phy_id = phy_data->phydev->phy_id;
 
@@ -945,14 +944,7 @@ static bool xgbe_phy_finisar_phy_quirks(struct xgbe_prv_data *pdata)
 	phy_write(phy_data->phydev, 0x04, 0x0d01);
 	phy_write(phy_data->phydev, 0x00, 0x9140);
 
-	linkmode_set_bit_array(phy_10_100_features_array,
-			       ARRAY_SIZE(phy_10_100_features_array),
-			       supported);
-	linkmode_set_bit_array(phy_gbit_features_array,
-			       ARRAY_SIZE(phy_gbit_features_array),
-			       supported);
-
-	linkmode_copy(phy_data->phydev->supported, supported);
+	linkmode_copy(phy_data->phydev->supported, PHY_GBIT_FEATURES);
 
 	phy_support_asym_pause(phy_data->phydev);
 
@@ -964,7 +956,6 @@ static bool xgbe_phy_finisar_phy_quirks(struct xgbe_prv_data *pdata)
 
 static bool xgbe_phy_belfuse_phy_quirks(struct xgbe_prv_data *pdata)
 {
-	__ETHTOOL_DECLARE_LINK_MODE_MASK(supported) = { 0, };
 	struct xgbe_phy_data *phy_data = pdata->phy_data;
 	struct xgbe_sfp_eeprom *sfp_eeprom = &phy_data->sfp_eeprom;
 	unsigned int phy_id = phy_data->phydev->phy_id;
@@ -1028,13 +1019,7 @@ static bool xgbe_phy_belfuse_phy_quirks(struct xgbe_prv_data *pdata)
 	reg = phy_read(phy_data->phydev, 0x00);
 	phy_write(phy_data->phydev, 0x00, reg & ~0x00800);
 
-	linkmode_set_bit_array(phy_10_100_features_array,
-			       ARRAY_SIZE(phy_10_100_features_array),
-			       supported);
-	linkmode_set_bit_array(phy_gbit_features_array,
-			       ARRAY_SIZE(phy_gbit_features_array),
-			       supported);
-	linkmode_copy(phy_data->phydev->supported, supported);
+	linkmode_copy(phy_data->phydev->supported, PHY_GBIT_FEATURES);
 	phy_support_asym_pause(phy_data->phydev);
 
 	netif_dbg(pdata, drv, pdata->netdev,
-- 
2.47.1