BPF_MAP_UPDATE_ELEM 885 kernel/bpf/syscall.c if (CHECK_ATTR(BPF_MAP_UPDATE_ELEM)) BPF_MAP_UPDATE_ELEM 2870 kernel/bpf/syscall.c case BPF_MAP_UPDATE_ELEM: BPF_MAP_UPDATE_ELEM 368 tools/lib/bpf/bpf.c return sys_bpf(BPF_MAP_UPDATE_ELEM, &attr, sizeof(attr));