+int get_device(const char *ifname, const char *dev_str,
+ block_dev_desc_t **dev_desc);
+int get_device_and_partition(const char *ifname, const char *dev_part_str,
+ block_dev_desc_t **dev_desc,
+ disk_partition_t *info, int allow_whole_dev);
+#else
+static inline block_dev_desc_t *get_dev(const char *ifname, int dev)
+{ return NULL; }
+static inline block_dev_desc_t* ide_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t* sata_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t* scsi_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t* usb_stor_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t* mmc_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t* systemace_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t* mg_disk_get_dev(int dev) { return NULL; }