diff --git a/sys/dev/etherswitch/arswitch/arswitch.c b/sys/dev/etherswitch/arswitch/arswitch.c
index 1c2bcefdfe91..70f3ad501d5d 100644
--- a/sys/dev/etherswitch/arswitch/arswitch.c
+++ b/sys/dev/etherswitch/arswitch/arswitch.c
@@ -95,7 +95,7 @@ arswitch_probe(device_t dev)
 {
 	struct arswitch_softc *sc;
 	uint32_t id;
-	char *chipname, desc[256];
+	char *chipname;
 
 	sc = device_get_softc(dev);
 	bzero(sc, sizeof(*sc));
@@ -132,12 +132,9 @@ arswitch_probe(device_t dev)
 
 	DPRINTF(sc, ARSWITCH_DBG_ANY, "chipname=%s, id=%08x\n", chipname, id);
 	if (chipname != NULL) {
-		snprintf(desc, sizeof(desc),
+		device_set_descf(dev,
 		    "Atheros %s Ethernet Switch (ver %d rev %d)",
-		    chipname,
-		    sc->chip_ver,
-		    sc->chip_rev);
-		device_set_desc_copy(dev, desc);
+		    chipname, sc->chip_ver, sc->chip_rev);
 		return (BUS_PROBE_DEFAULT);
 	}
 	return (ENXIO);
diff --git a/sys/dev/etherswitch/e6000sw/e6060sw.c b/sys/dev/etherswitch/e6000sw/e6060sw.c
index 19744f5e44a5..8bc482af24e8 100644
--- a/sys/dev/etherswitch/e6000sw/e6060sw.c
+++ b/sys/dev/etherswitch/e6000sw/e6060sw.c
@@ -162,7 +162,6 @@ e6060sw_probe(device_t dev)
 	struct e6060sw_softc *sc;
 	int devid, i;
 	char *devname;
-	char desc[80];
 
 	sc = device_get_softc(dev);
 	bzero(sc, sizeof(*sc));
@@ -193,9 +192,8 @@ e6060sw_probe(device_t dev)
 	else
 		return (ENXIO);
 
-	sprintf(desc, "Marvell %s MDIO switch driver at 0x%02x",
+	device_set_descf(dev, "Marvell %s MDIO switch driver at 0x%02x",
 	    devname, sc->smi_offset);
-	device_set_desc_copy(dev, desc);
 
 	return (BUS_PROBE_DEFAULT);
 }
diff --git a/sys/dev/etherswitch/infineon/adm6996fc.c b/sys/dev/etherswitch/infineon/adm6996fc.c
index cc67616d9fdf..95a24a2fb37a 100644
--- a/sys/dev/etherswitch/infineon/adm6996fc.c
+++ b/sys/dev/etherswitch/infineon/adm6996fc.c
@@ -153,7 +153,7 @@ adm6996fc_probe(device_t dev)
 		return (ENXIO);
 	}
 
-	device_set_desc_copy(dev, "Infineon ADM6996FC/M/MX MDIO switch driver");
+	device_set_desc(dev, "Infineon ADM6996FC/M/MX MDIO switch driver");
 	return (BUS_PROBE_DEFAULT);
 }
 
diff --git a/sys/dev/etherswitch/ip17x/ip17x.c b/sys/dev/etherswitch/ip17x/ip17x.c
index 65e548ba293b..45119ded83a9 100644
--- a/sys/dev/etherswitch/ip17x/ip17x.c
+++ b/sys/dev/etherswitch/ip17x/ip17x.c
@@ -152,7 +152,7 @@ ip17x_probe(device_t dev)
 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
 	    "mii-poll", &sc->miipoll);
 #endif
-	device_set_desc_copy(dev, "IC+ IP17x switch driver");
+	device_set_desc(dev, "IC+ IP17x switch driver");
 	return (BUS_PROBE_DEFAULT);
 }
 
diff --git a/sys/dev/etherswitch/micrel/ksz8995ma.c b/sys/dev/etherswitch/micrel/ksz8995ma.c
index 43292d3b2007..2b5af2a5625a 100644
--- a/sys/dev/etherswitch/micrel/ksz8995ma.c
+++ b/sys/dev/etherswitch/micrel/ksz8995ma.c
@@ -197,7 +197,7 @@ ksz8995ma_probe(device_t dev)
 		return (ENXIO);
 	}
 
-	device_set_desc_copy(dev, "Micrel KSZ8995MA SPI switch driver");
+	device_set_desc(dev, "Micrel KSZ8995MA SPI switch driver");
 	return (BUS_PROBE_DEFAULT);
 }
 
diff --git a/sys/dev/etherswitch/mtkswitch/mtkswitch.c b/sys/dev/etherswitch/mtkswitch/mtkswitch.c
index 6e235097f189..75f7cbfa6941 100644
--- a/sys/dev/etherswitch/mtkswitch/mtkswitch.c
+++ b/sys/dev/etherswitch/mtkswitch/mtkswitch.c
@@ -100,7 +100,7 @@ mtkswitch_probe(device_t dev)
 	bzero(sc, sizeof(*sc));
 	sc->sc_switchtype = switch_type;
 
-	device_set_desc_copy(dev, "MTK Switch Driver");
+	device_set_desc(dev, "MTK Switch Driver");
 
 	return (0);
 }
diff --git a/sys/dev/etherswitch/ukswitch/ukswitch.c b/sys/dev/etherswitch/ukswitch/ukswitch.c
index 88726422bd01..c1e23f7c0f65 100644
--- a/sys/dev/etherswitch/ukswitch/ukswitch.c
+++ b/sys/dev/etherswitch/ukswitch/ukswitch.c
@@ -106,7 +106,7 @@ ukswitch_probe(device_t dev)
 	sc = device_get_softc(dev);
 	bzero(sc, sizeof(*sc));
 
-	device_set_desc_copy(dev, "Generic MDIO switch driver");
+	device_set_desc(dev, "Generic MDIO switch driver");
 	return (BUS_PROBE_DEFAULT);
 }