From: Kamal Heib <kamalheib1@gmail.com>
Date: Wed, 2 Sep 2020 15:43:04 +0300
Subject: RDMA/core: Fix reported speed and width
Patch-mainline: v5.9-rc5
Git-commit: 28b0865714b315e318ac45c4fc9156f3d4649646
References: bsc#1046306 FATE#322942

When the returned speed from __ethtool_get_link_ksettings() is
SPEED_UNKNOWN this will lead to reporting a wrong speed and width for
providers that uses ib_get_eth_speed(), fix that by defaulting the
netdev_speed to SPEED_1000 in case the returned value from
__ethtool_get_link_ksettings() is SPEED_UNKNOWN.

Fixes: d41861942fc5 ("IB/core: Add generic function to extract IB speed from netdev")
Link: https://lore.kernel.org/r/20200902124304.170912-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/core/verbs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1702,7 +1702,7 @@ int ib_get_eth_speed(struct ib_device *d
 
 	dev_put(netdev);
 
-	if (!rc) {
+	if (!rc && lksettings.base.speed != (u32)SPEED_UNKNOWN) {
 		netdev_speed = lksettings.base.speed;
 	} else {
 		netdev_speed = SPEED_1000;