fd
struct fd {
int qman_enqueue(struct qman_fq *fq, const struct qm_fd *fd);
int fd;
ioctl(cpu_buf->fd, PERF_EVENT_IOC_DISABLE, 0);
close(cpu_buf->fd);
LIBBPF_API struct bpf_linker *bpf_linker__new_fd(int fd, struct bpf_linker_opts *opts);
LIBBPF_API int bpf_linker__add_fd(struct bpf_linker *linker, int fd,