sparc: remove driver-core BUS_ID_SIZE

The name size limit is gone from the driver-core, the BUS_ID_SIZE
value will be removed.

Cc: David S. Miller <[e-mail]>
Signed-off-by: Kay Sievers <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

arch/sparc/kernel/vio.c

···
 	if (!strcmp(type, "domain-services-port"))
 		bus_id_name = "ds";
 
-	if (strlen(bus_id_name) >= BUS_ID_SIZE - 4) {
+	/*
+	 * 20 char is the old driver-core name size limit, which is no more.
+	 * This check can probably be removed after review and possible
+	 * adaption of the vio users name length handling.
+	 */
+	if (strlen(bus_id_name) >= 20 - 4) {
 		printk(KERN_ERR "VIO: bus_id_name [%s] is too long.\n",
 		       bus_id_name);
 		return NULL;