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-rw-r--r--tools/testing/selftests/bpf/progs/verifier_async_cb_context.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/verifier_async_cb_context.c b/tools/testing/selftests/bpf/progs/verifier_async_cb_context.c
index a7c84d3fa4c7..e0926767bbd3 100644
--- a/tools/testing/selftests/bpf/progs/verifier_async_cb_context.c
+++ b/tools/testing/selftests/bpf/progs/verifier_async_cb_context.c
@@ -108,6 +108,30 @@ int timer_sys_close_prog(void *ctx)
return 0;
}
+static int timer_btf_find_cb(void *map, int *key, struct bpf_timer *timer)
+{
+ char name[] = "task_struct";
+
+ bpf_btf_find_by_name_kind(name, sizeof(name), BTF_KIND_STRUCT, 0);
+ return 0;
+}
+
+SEC("syscall")
+__failure __msg("sleepable helper bpf_btf_find_by_name_kind#{{[0-9]+}} in non-sleepable prog")
+int timer_btf_find_prog(void *ctx)
+{
+ struct timer_elem *val;
+ int key = 0;
+
+ val = bpf_map_lookup_elem(&timer_map, &key);
+ if (!val)
+ return 0;
+
+ bpf_timer_init(&val->t, &timer_map, 0);
+ bpf_timer_set_callback(&val->t, timer_btf_find_cb);
+ return 0;
+}
+
SEC("syscall")
__success
int syscall_sys_bpf_prog(void *ctx)
@@ -126,6 +150,16 @@ int syscall_sys_close_prog(void *ctx)
return 0;
}
+SEC("syscall")
+__success
+int syscall_btf_find_prog(void *ctx)
+{
+ char name[] = "task_struct";
+
+ bpf_btf_find_by_name_kind(name, sizeof(name), BTF_KIND_STRUCT, 0);
+ return 0;
+}
+
/* Workqueue tests */
struct wq_elem {