ibmvnic: Warn unknown speed message only when carrier is present

With commit 0655f994 ("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>

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)