bpf_map_get_fd_by_id 2190 kernel/bpf/syscall.c static int bpf_map_get_fd_by_id(const union bpf_attr *attr) bpf_map_get_fd_by_id 611 tools/lib/bpf/bpf.c int bpf_map_get_fd_by_id(__u32 id)