[PATCH bpf-next v1 2/2] selftests/bpf: Skip spin lock failure test on s390x

[Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx>]

Instead of adding the whole test to DENYLIST.s390x, which also has
success test cases that should be run, just skip over failure test
cases in case the JIT does not support kfuncs.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx>
---
 tools/testing/selftests/bpf/prog_tests/spin_lock.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/testing/selftests/bpf/prog_tests/spin_lock.c b/tools/testing/selftests/bpf/prog_tests/spin_lock.c
index 72282e92a78a..d9270bd3d920 100644
--- a/tools/testing/selftests/bpf/prog_tests/spin_lock.c
+++ b/tools/testing/selftests/bpf/prog_tests/spin_lock.c
@@ -68,6 +68,12 @@ static void test_spin_lock_fail_prog(const char *prog_name, const char *err_msg)
 	if (!ASSERT_ERR(ret, "test_spin_lock_fail__load must fail"))
 		goto end;
 
+	/* Skip check if JIT does not support kfuncs */
+	if (strstr(log_buf, "JIT does not support calling kernel function")) {
+		test__skip();
+		goto end;
+	}
+
 	if (!ASSERT_OK_PTR(strstr(log_buf, err_msg), "expected error message")) {
 		fprintf(stderr, "Expected: %s\n", err_msg);
 		fprintf(stderr, "Verifier: %s\n", log_buf);
-- 
2.38.1