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-rw-r--r--tools/testing/selftests/bpf/test_lpm_map.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/test_lpm_map.c b/tools/testing/selftests/bpf/test_lpm_map.c
index 147e34cfceb7..02d7c871862a 100644
--- a/tools/testing/selftests/bpf/test_lpm_map.c
+++ b/tools/testing/selftests/bpf/test_lpm_map.c
@@ -474,6 +474,16 @@ static void test_lpm_delete(void)
assert(bpf_map_lookup_elem(map_fd, key, &value) == -1 &&
errno == ENOENT);
+ key->prefixlen = 30; // unused prefix so far
+ inet_pton(AF_INET, "192.255.0.0", key->data);
+ assert(bpf_map_delete_elem(map_fd, key) == -1 &&
+ errno == ENOENT);
+
+ key->prefixlen = 16; // same prefix as the root node
+ inet_pton(AF_INET, "192.255.0.0", key->data);
+ assert(bpf_map_delete_elem(map_fd, key) == -1 &&
+ errno == ENOENT);
+
/* assert initial lookup */
key->prefixlen = 32;
inet_pton(AF_INET, "192.168.0.1", key->data);