// SPDX-License-Identifier: GPL-2.0 /* Copyright Leon Hwang */ #include "vmlinux.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> int count = 0; SEC("fentry/subprog_tail") int BPF_PROG(fentry, struct sk_buff *skb) { count++; return 0; } char _license[] SEC("license") = "GPL";