bpf_attr 19 include/linux/bpf.h struct bpf_map *(*map_alloc)(union bpf_attr *attr); bpf_attr 134 include/linux/bpf.h int bpf_check(struct bpf_prog *fp, union bpf_attr *attr); bpf_attr 68 include/linux/syscalls.h union bpf_attr; bpf_attr 879 include/linux/syscalls.h asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);