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-rw-r--r--tools/testing/selftests/bpf/sample_map_ret0.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/sample_map_ret0.c b/tools/testing/selftests/bpf/sample_map_ret0.c
new file mode 100644
index 000000000000..0756303676ac
--- /dev/null
+++ b/tools/testing/selftests/bpf/sample_map_ret0.c
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */
+#include <linux/bpf.h>
+#include "bpf_helpers.h"
+
+struct bpf_map_def SEC("maps") htab = {
+ .type = BPF_MAP_TYPE_HASH,
+ .key_size = sizeof(__u32),
+ .value_size = sizeof(long),
+ .max_entries = 2,
+};
+
+struct bpf_map_def SEC("maps") array = {
+ .type = BPF_MAP_TYPE_ARRAY,
+ .key_size = sizeof(__u32),
+ .value_size = sizeof(long),
+ .max_entries = 2,
+};
+
+/* Sample program which should always load for testing control paths. */
+SEC(".text") int func()
+{
+ __u64 key64 = 0;
+ __u32 key = 0;
+ long *value;
+
+ value = bpf_map_lookup_elem(&htab, &key);
+ if (!value)
+ return 1;
+ value = bpf_map_lookup_elem(&array, &key64);
+ if (!value)
+ return 1;
+
+ return 0;
+}