diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 050eed8e26846..b9d46dcb52109 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -7518,7 +7518,7 @@ static int megasas_probe_one(struct pci_dev *pdev,
 	 */
 	instance->pdev = pdev;
 	instance->host = host;
-	instance->unique_id = pdev->bus->number << 8 | pdev->devfn;
+	instance->unique_id = pci_dev_id(pdev);
 	instance->init_id = MEGASAS_DEFAULT_INIT_ID;
 
 	megasas_set_adapter_type(instance);