[PATCH 4.4 14/63] net: mvneta: clear interface link status on port disable

From: Greg Kroah-Hartman
Date: Mon Jan 01 2018 - 10:29:38 EST


4.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Yelena Krivosheev <yelena@xxxxxxxxxxx>

commit 4423c18e466afdfb02a36ee8b9f901d144b3c607 upstream.

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@xxxxxxxxxxxxxxxxxx: add fixes tag]
Fixes: c5aff18204da ("net: mvneta: driver for Marvell Armada 370/XP network unit")
Signed-off-by: Yelena Krivosheev <yelena@xxxxxxxxxxx>
Tested-by: Dmitri Epshtein <dima@xxxxxxxxxxx>
Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/net/ethernet/marvell/mvneta.c | 4 ++++
1 file changed, 4 insertions(+)

--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -914,6 +914,10 @@ static void mvneta_port_disable(struct m
val &= ~MVNETA_GMAC0_PORT_ENABLE;
mvreg_write(pp, MVNETA_GMAC_CTRL_0, val);

+ pp->link = 0;
+ pp->duplex = -1;
+ pp->speed = 0;
+
udelay(200);
}