HWSIM_RATE_INFO_ATTR_HE_DCM
if (tb[HWSIM_RATE_INFO_ATTR_HE_DCM])
rate_info->he_dcm = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_HE_DCM]);
[HWSIM_RATE_INFO_ATTR_HE_DCM] = { .type = NLA_U8 },