21 lines
377 B
C
21 lines
377 B
C
|
// SPDX-License-Identifier: GPL-2.0-only
|
||
|
|
/* Copyright (c) 2020 Facebook */
|
||
|
|
#include <stddef.h>
|
||
|
|
#include <linux/bpf.h>
|
||
|
|
#include <bpf/bpf_helpers.h>
|
||
|
|
#include "bpf_misc.h"
|
||
|
|
|
||
|
|
__attribute__ ((noinline))
|
||
|
|
void foo(struct __sk_buff *skb)
|
||
|
|
{
|
||
|
|
skb->tc_index = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
SEC("tc")
|
||
|
|
__failure __msg("foo() doesn't return scalar")
|
||
|
|
int global_func7(struct __sk_buff *skb)
|
||
|
|
{
|
||
|
|
foo(skb);
|
||
|
|
return 0;
|
||
|
|
}
|