| 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)) |
| 9 | int f1(struct __sk_buff *skb) |
| 10 | { |
| 11 | return skb->len; |
| 12 | } |
| 13 | |
| 14 | int f3(int, struct __sk_buff *skb); |
| 15 | |
| 16 | __attribute__ ((noinline)) |
| 17 | int f2(int val, struct __sk_buff *skb) |
| 18 | { |
| 19 | return f1(skb) + f3(val, skb: (void *)&val); /* type mismatch */ |
| 20 | } |
| 21 | |
| 22 | __attribute__ ((noinline)) |
| 23 | int f3(int val, struct __sk_buff *skb) |
| 24 | { |
| 25 | return skb->ifindex * val; |
| 26 | } |
| 27 | |
| 28 | SEC("tc") |
| 29 | __failure __msg("expects pointer to ctx") |
| 30 | int global_func5(struct __sk_buff *skb) |
| 31 | { |
| 32 | return f1(skb) + f2(val: 2, skb) + f3(val: 3, skb); |
| 33 | } |
| 34 |