nvme_ana_rsp_hdr
ana_log_size = sizeof(struct nvme_ana_rsp_hdr) +
size_t offset = sizeof(struct nvme_ana_rsp_hdr);
struct nvme_ana_rsp_hdr *ana_log_buf;
struct nvme_ana_rsp_hdr hdr = { 0, };
size_t offset = sizeof(struct nvme_ana_rsp_hdr); /* start beyond hdr */