* support multi-channel.
         */
        max_chns = vstor_packet->storage_channel_properties.max_channel_cnt;
-       if (vmbus_proto_version >= VERSION_WIN8) {
+       if (vmstor_proto_version >= VMSTOR_PROTO_VERSION_WIN8) {
                if (vstor_packet->storage_channel_properties.flags &
                    STORAGE_CHANNEL_SUPPORTS_MULTI_CHANNEL)
                        process_sub_channels = true;
         * if the device is a MSFT virtual device.
         */
        if (!strncmp(sdevice->vendor, "Msft", 4)) {
-               switch (vmbus_proto_version) {
-               case VERSION_WIN8:
-               case VERSION_WIN8_1:
+               switch (vmstor_proto_version) {
+               case VMSTOR_PROTO_VERSION_WIN8:
+               case VMSTOR_PROTO_VERSION_WIN8_1:
                        sdevice->scsi_level = SCSI_SPC_3;
                        break;
                }