bpf_prog_create_from_user
int bpf_prog_create_from_user(struct bpf_prog **pfp, struct sock_fprog *fprog,
ret = bpf_prog_create_from_user(&prog, &fprog,
ret = bpf_prog_create_from_user(&sfilter->prog, fprog,
EXPORT_SYMBOL_GPL(bpf_prog_create_from_user);
ret = bpf_prog_create_from_user(&new, &fprog, NULL, false);