linux-kernel - [PATCH net 1/3] net: mvneta: clear interface link status on port disable

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Date:   Tue, 19 Dec 2017 17:59:45 +0100
From:   Gregory CLEMENT <gregory.clement@...e-electrons.com>
To:     "David S. Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Cc:     Jason Cooper <jason@...edaemon.net>, Andrew Lunn <andrew@...n.ch>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Gregory CLEMENT <gregory.clement@...e-electrons.com>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        linux-arm-kernel@...ts.infradead.org,
        Antoine Tenart <antoine.tenart@...e-electrons.com>,
        Miquèl Raynal <miquel.raynal@...e-electrons.com>,
        Nadav Haklai <nadavh@...vell.com>,
        Marcin Wojtas <mw@...ihalf.com>,
        Lior Amsalem <alior@...vell.com>,
        Dmitri Epshtein <dima@...vell.com>,
        Yelena Krivosheev <yelena@...vell.com>, stable@...r.kernel.org
Subject: [PATCH net 1/3] net: mvneta: clear interface link status on port disable

From: Yelena Krivosheev <yelena@...vell.com>

When port connect to PHY in polling mode (with poll interval 1 sec),
port and phy link status must be synchronize in order don't loss link
change event.

[gregory.clement@...e-electrons.com: add fixes tag]
Cc: <stable@...r.kernel.org>
Fixes: c5aff18204da ("net: mvneta: driver for Marvell Armada 370/XP network unit")
Signed-off-by: Yelena Krivosheev <yelena@...vell.com>
Tested-by: Dmitri Epshtein <dima@...vell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@...e-electrons.com>
---
 drivers/net/ethernet/marvell/mvneta.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index bc93b69cfd1e..16b2bfb2cf51 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -1214,6 +1214,10 @@ static void mvneta_port_disable(struct mvneta_port *pp)
 	val &= ~MVNETA_GMAC0_PORT_ENABLE;
 	mvreg_write(pp, MVNETA_GMAC_CTRL_0, val);
 
+	pp->link = 0;
+	pp->duplex = -1;
+	pp->speed = 0;
+
 	udelay(200);
 }
 
-- 
2.15.1