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| author | Yonghong Song <yonghong.song@linux.dev> | 2023-12-22 06:18:12 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2024-01-04 08:08:26 +0300 |
| commit | adc8c4549d9e74d2359c217d2478b18ecdd15c91 (patch) | |
| tree | 33e7bd54cb6f7ee386fa8abca5ab0ae9cea74d64 /tools/testing/selftests/bpf/progs | |
| parent | 21f5a801c171dff4e728e38f62cf626c4197d07c (diff) | |
| download | linux-adc8c4549d9e74d2359c217d2478b18ecdd15c91.tar.xz | |
selftests/bpf: Add a selftest with > 512-byte percpu allocation size
Add a selftest to capture the verification failure when the allocation
size is greater than 512.
Acked-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20231222031812.1293190-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/progs')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/percpu_alloc_fail.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/percpu_alloc_fail.c b/tools/testing/selftests/bpf/progs/percpu_alloc_fail.c index 1a891d30f1fe..f2b8eb2ff76f 100644 --- a/tools/testing/selftests/bpf/progs/percpu_alloc_fail.c +++ b/tools/testing/selftests/bpf/progs/percpu_alloc_fail.c @@ -17,6 +17,10 @@ struct val_with_rb_root_t { struct bpf_spin_lock lock; }; +struct val_600b_t { + char b[600]; +}; + struct elem { long sum; struct val_t __percpu_kptr *pc; @@ -161,4 +165,18 @@ int BPF_PROG(test_array_map_7) return 0; } +SEC("?fentry.s/bpf_fentry_test1") +__failure __msg("bpf_percpu_obj_new type size (600) is greater than 512") +int BPF_PROG(test_array_map_8) +{ + struct val_600b_t __percpu_kptr *p; + + p = bpf_percpu_obj_new(struct val_600b_t); + if (!p) + return 0; + + bpf_percpu_obj_drop(p); + return 0; +} + char _license[] SEC("license") = "GPL"; |