Build fails if HOTPLUG is disabled
== Build lib/librte_ether CC rte_ethdev.o /var/src/dpdk/lib/librte_ether/rte_ethdev.c:430:1: error: ?rte_eth_dev_get_device_type? defined but not used [-Werror=unused-function] rte_eth_dev_get_device_type(uint8_t port_id) ^ /var/src/dpdk/lib/librte_ether/rte_ethdev.c:438:1: error: ?rte_eth_dev_save? defined but not used [-Werror=unused-function] rte_eth_dev_save(struct rte_eth_dev *devs, size_t size) ^ /var/src/dpdk/lib/librte_ether/rte_ethdev.c:450:1: error: ?rte_eth_dev_get_changed_port? defined but not used [-Werror=unused-function] rte_eth_dev_get_changed_port(struct rte_eth_dev *devs, uint8_t *port_id) ^ /var/src/dpdk/lib/librte_ether/rte_ethdev.c:464:1: error: ?rte_eth_dev_get_addr_by_port? defined but not used [-Werror=unused-function] rte_eth_dev_get_addr_by_port(uint8_t port_id, struct rte_pci_addr *addr) ^ /var/src/dpdk/lib/librte_ether/rte_ethdev.c:481:1: error: ?rte_eth_dev_get_name_by_port? defined but not used [-Werror=unused-function] rte_eth_dev_get_name_by_port(uint8_t port_id, char *name) ^ /var/src/dpdk/lib/librte_ether/rte_ethdev.c:503:1: error: ?rte_eth_dev_is_detachable? defined but not used [-Werror=unused-function] rte_eth_dev_is_detachable(uint8_t port_id) ^ cc1: all warnings being treated as errors
