nvme_feat_disc_fid
if (err == NULL && fid == nvme_feat_disc_fid(disc)) {
if (nvme_feat_disc_fid(disc) == NVME_FEAT_ERROR &&
uint32_t fid = nvme_feat_disc_fid(disc);
ret = snprintf(buf, buflen, "0x%x", nvme_feat_disc_fid(feat));
extern uint32_t nvme_feat_disc_fid(const nvme_feat_disc_t *);