Global spdk_nvme_error_information_entry::error_location: Use pel instead. This field will be removed in v27.01.
Global spdk_nvme_ns_get_format_index (const struct spdk_nvme_ns_data *nsdata): Use spdk_nvme_ns_get_active_format_index instead.
Global spdk_nvme_ns_get_nguid (const struct spdk_nvme_ns *ns): Read nguid directly from spdk_nvme_ns_get_data_head(ns); per the NVMe spec an all-zero NGUID means "not present".