linux-kernel - [PATCH net v3] net: phy: marvell: Fix invalid comparison in the resume and suspend functions

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Message-Id: <20220312201512.326047-1-kurt@x64architecture.com>
Date:   Sat, 12 Mar 2022 15:15:13 -0500
From:   Kurt Cancemi <kurt@...architecture.com>
To:     netdev@...r.kernel.org
Cc:     kurt@...architecture.com, kabel@...nel.org,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Charles-Antoine Couret <charles-antoine.couret@...vision.fr>,
        linux-kernel@...r.kernel.org
Subject: [PATCH net v3] net: phy: marvell: Fix invalid comparison in the resume and suspend functions

This bug resulted in only the current mode being resumed and suspended when
the PHY supported both fiber and copper modes and when the PHY only supported
copper mode the fiber mode would incorrectly be attempted to be resumed and
suspended.

Fixes: 3758be3dc162 ("Marvell phy: add functions to suspend and resume both interfaces: fiber and copper links.")
Signed-off-by: Kurt Cancemi <kurt@...architecture.com>
---

I removed the dot from the summary line.

 drivers/net/phy/marvell.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 2429db614b59..80b888a88127 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -1687,7 +1687,7 @@ static int marvell_suspend(struct phy_device *phydev)
 	int err;
 
 	/* Suspend the fiber mode first */
-	if (!linkmode_test_bit(ETHTOOL_LINK_MODE_FIBRE_BIT,
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_FIBRE_BIT,
 			       phydev->supported)) {
 		err = marvell_set_page(phydev, MII_MARVELL_FIBER_PAGE);
 		if (err < 0)
@@ -1722,7 +1722,7 @@ static int marvell_resume(struct phy_device *phydev)
 	int err;
 
 	/* Resume the fiber mode first */
-	if (!linkmode_test_bit(ETHTOOL_LINK_MODE_FIBRE_BIT,
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_FIBRE_BIT,
 			       phydev->supported)) {
 		err = marvell_set_page(phydev, MII_MARVELL_FIBER_PAGE);
 		if (err < 0)
-- 
2.35.1