__nla_type
nla = nested_attr_tb[__nla_type(T_ctx_volume)];
nla = nested_attr_tb[__nla_type(T_ctx_resource_name)];
adm_ctx->my_addr = nested_attr_tb[__nla_type(T_ctx_my_addr)];
adm_ctx->peer_addr = nested_attr_tb[__nla_type(T_ctx_peer_addr)];
return drbd_nla_find_nested(maxtype, nla, __nla_type(attr));
nla = drbd_nla_find_nested(maxtype, nla, __nla_type(T_ctx_resource_name));