1// SPDX-License-Identifier: GPL-2.0
 2// Copyright (c) 2019 Facebook
 3#include <linux/bpf.h>
 4#include <bpf/bpf_helpers.h>
 5
 6char _license[] SEC("license") = "GPL";
 7
 8SEC("socket")
 9int combinations(volatile struct __sk_buff* skb)
10{
11	int ret = 0, i;
12
13#pragma nounroll
14	for (i = 0; i < 20; i++)
15		if (skb->len)
16			ret |= 1 << i;
17	return ret;
18}

 1// SPDX-License-Identifier: GPL-2.0
 2// Copyright (c) 2019 Facebook
 3#include <linux/bpf.h>
 4#include <bpf/bpf_helpers.h>
 5
 6char _license[] SEC("license") = "GPL";
 7
 8SEC("socket")
 9int combinations(volatile struct __sk_buff* skb)
10{
11	int ret = 0, i;
12
13#pragma nounroll
14	for (i = 0; i < 20; i++)
15		if (skb->len)
16			ret |= 1 << i;
17	return ret;
18}