NVMF_NQN_FIELD_LEN
if (!len || len > NVMF_NQN_FIELD_LEN - 1)
d->subsysnqn[NVMF_NQN_FIELD_LEN - 1] = '\0';
d->hostnqn[NVMF_NQN_FIELD_LEN - 1] = '\0';
d->subsysnqn[NVMF_NQN_FIELD_LEN - 1] = '\0';
d->hostnqn[NVMF_NQN_FIELD_LEN - 1] = '\0';
char hostnqn[NVMF_NQN_FIELD_LEN];
char subnqn[NVMF_NQN_FIELD_LEN];
char subsysnqn[NVMF_NQN_FIELD_LEN];
char hostnqn[NVMF_NQN_FIELD_LEN];