// SPDX-License-Identifier: GPL-2.0-only #include <stddef.h> #include <linux/bpf.h> #include <bpf/bpf_helpers.h> __noinline int foo(unsigned int *v) { if (v) *v = bpf_get_prandom_u32(); return 0; } SEC("cgroup_skb/ingress") int test_cls(struct __sk_buff *skb) { unsigned int v = 1; foo(&v); return v; }