intr = enic_msix_rq_intr(enic, i);
                        snprintf(enic->msix[intr].devname,
                                sizeof(enic->msix[intr].devname),
-                               "%.11s-rx-%d", netdev->name, i);
+                               "%.11s-rx-%u", netdev->name, i);
                        enic->msix[intr].isr = enic_isr_msix;
                        enic->msix[intr].devid = &enic->napi[i];
                }
                        intr = enic_msix_wq_intr(enic, i);
                        snprintf(enic->msix[intr].devname,
                                sizeof(enic->msix[intr].devname),
-                               "%.11s-tx-%d", netdev->name, i);
+                               "%.11s-tx-%u", netdev->name, i);
                        enic->msix[intr].isr = enic_isr_msix;
                        enic->msix[intr].devid = &enic->napi[wq];
                }