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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Doug Berger <opendmb@gmail.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        "David S. Miller" <davem@davemloft.net>
Subject: [PATCH 4.19 65/79] net: bcmgenet: dont set phydev->link from MAC
Date:   Fri,  8 Nov 2019 19:50:45 +0100
Message-Id: <20191108174822.160399490@linuxfoundation.org>
In-Reply-To: <20191108174745.495640141@linuxfoundation.org>
References: <20191108174745.495640141@linuxfoundation.org>
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From: Doug Berger <opendmb@gmail.com>

[ Upstream commit 7de48402faa32298c3551ea32c76ccb4f9d3025d ]

When commit 28b2e0d2cd13 ("net: phy: remove parameter new_link from
phy_mac_interrupt()") removed the new_link parameter it set the
phydev->link state from the MAC before invoking phy_mac_interrupt().

However, once commit 88d6272acaaa ("net: phy: avoid unneeded MDIO
reads in genphy_read_status") was added this initialization prevents
the proper determination of the connection parameters by the function
genphy_read_status().

This commit removes that initialization to restore the proper
functionality.

Fixes: 88d6272acaaa ("net: phy: avoid unneeded MDIO reads in genphy_read_status")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/genet/bcmgenet.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -2619,10 +2619,8 @@ static void bcmgenet_irq_task(struct wor
 	spin_unlock_irq(&priv->lock);
 
 	/* Link UP/DOWN event */
-	if (status & UMAC_IRQ_LINK_EVENT) {
-		priv->dev->phydev->link = !!(status & UMAC_IRQ_LINK_UP);
+	if (status & UMAC_IRQ_LINK_EVENT)
 		phy_mac_interrupt(priv->dev->phydev);
-	}
 }
 
 /* bcmgenet_isr1: handle Rx and Tx priority queues */