tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0-only
2/* Copyright (c) 2020 Facebook */
3#include <stddef.h>
4#include <linux/bpf.h>
5#include <bpf/bpf_helpers.h>
6#include "bpf_misc.h"
7
8__attribute__ ((noinline))
9void foo(struct __sk_buff *skb)
10{
11 skb->tc_index = 0;
12}
13
14SEC("tc")
15__failure __msg("foo() doesn't return scalar")
16int global_func7(struct __sk_buff *skb)
17{
18 foo(skb);
19 return 0;
20}