xref: /linux/tools/testing/selftests/bpf/progs/dummy_st_ops_fail.c (revision b4db9f840283caca0d904436f187ef56a9126eaa)
1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
3 
4 #include "vmlinux.h"
5 #include <bpf/bpf_helpers.h>
6 #include <bpf/bpf_tracing.h>
7 
8 #include "bpf_misc.h"
9 
10 char _license[] SEC("license") = "GPL";
11 
12 SEC("struct_ops.s/test_2")
13 __failure __msg("attach to unsupported member test_2 of struct bpf_dummy_ops")
14 int BPF_PROG(test_unsupported_field_sleepable,
15 	     struct bpf_dummy_ops_state *state, int a1, unsigned short a2,
16 	     char a3, unsigned long a4)
17 {
18 	/* Tries to mark an unsleepable field in struct bpf_dummy_ops as sleepable. */
19 	return 0;
20 }
21 
22 SEC(".struct_ops")
23 struct bpf_dummy_ops dummy_1 = {
24 	.test_1 = NULL,
25 	.test_2 = (void *)test_unsupported_field_sleepable,
26 	.test_sleepable = (void *)NULL,
27 };
28