NFC_ATTR_VENDOR_SUBCMD
!info->attrs[NFC_ATTR_VENDOR_SUBCMD])
subcmd = nla_get_u32(info->attrs[NFC_ATTR_VENDOR_SUBCMD]);
if (nla_put_u32(skb, NFC_ATTR_VENDOR_SUBCMD, subcmd))
[NFC_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },