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// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2019 Facebook
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#define barrier() __asm__ __volatile__("": : :"memory")
char _license[] SEC("license") = "GPL";
SEC("socket")
int while_true(volatile struct __sk_buff* skb)
{
int i = 0;
while (1) {
if (skb->len)
i += 3;
else
i += 7;
if (i == 9)
break;
barrier();
if (i == 10)
break;
barrier();
if (i == 13)
break;
barrier();
if (i == 14)
break;
}
return i;
}
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