From dd0f9d896d167ab37732dd83986adc3a017a13b4 Mon Sep 17 00:00:00 2001
From: Murilo Fossa Vicentini <muvic@linux.ibm.com>
Date: Mon, 16 Sep 2019 11:50:37 -0300
Subject: [PATCH] ibmvnic: Warn unknown speed message only when carrier is
 present

References: bsc#1065729
Patch-mainline: v5.4-rc1
Git-commit: dd0f9d896d167ab37732dd83986adc3a017a13b4

With commit 0655f9943df2 ("net/ibmvnic: Update carrier state after link
state change") we are now able to detect when the carrier is properly
present in the device, so only report an unexpected unknown speed when it
is properly detected. Unknown speed is expected to be seen by the device
in case the backing device has no link detected.

Reported-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Tested-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Signed-off-by: Murilo Fossa Vicentini <muvic@linux.ibm.com>
Reviewed-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 2e5172f61564..3816fff75bb5 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -4312,13 +4312,14 @@ static int handle_query_phys_parms_rsp(union ibmvnic_crq *crq,
 {
 	struct net_device *netdev = adapter->netdev;
 	int rc;
+	__be32 rspeed = cpu_to_be32(crq->query_phys_parms_rsp.speed);
 
 	rc = crq->query_phys_parms_rsp.rc.code;
 	if (rc) {
 		netdev_err(netdev, "Error %d in QUERY_PHYS_PARMS\n", rc);
 		return rc;
 	}
-	switch (cpu_to_be32(crq->query_phys_parms_rsp.speed)) {
+	switch (rspeed) {
 	case IBMVNIC_10MBPS:
 		adapter->speed = SPEED_10;
 		break;
@@ -4344,8 +4345,8 @@ static int handle_query_phys_parms_rsp(union ibmvnic_crq *crq,
 		adapter->speed = SPEED_100000;
 		break;
 	default:
-		netdev_warn(netdev, "Unknown speed 0x%08x\n",
-			    cpu_to_be32(crq->query_phys_parms_rsp.speed));
+		if (netif_carrier_ok(netdev))
+			netdev_warn(netdev, "Unknown speed 0x%08x\n", rspeed);
 		adapter->speed = SPEED_UNKNOWN;
 	}
 	if (crq->query_phys_parms_rsp.flags1 & IBMVNIC_FULL_DUPLEX)
-- 
2.23.0