// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2019 Facebook
#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>

char _license[] SEC("license") = "GPL";

SEC("raw_tracepoint/kfree_skb")
int nested_loops(volatile struct pt_regs* ctx)
{
        int i, j, sum = 0, m;

        for (j = 0; j < 300; j++)
                for (i = 0; i < j; i++) {
                        if (j & 1)
                                m = PT_REGS_RC(ctx);
                        else
                                m = j;
                        sum += i * m;
                }

        return sum;
}